RFC Number (or Subseries Number):
Title/Keyword:    
Show Abstract  Show Keywords






Any
Standards Track :: 
Best Current Practice
Informational
Experimental
Historic
Unknown
WG Acronym:
Author (surname):
Abstract contains:

566 results ( Show  25  | All )

NumberFilesTitleAuthorsDateMore InfoStatus
RFC 1889ASCII, PDF, HTML RTP: A Transport Protocol for Real-Time Applications Audio-Video Transport Working Group, H. Schulzrinne, S. Casner, R. Frederick, V. JacobsonJanuary 1996Obsoleted by RFC 3550Proposed Standard
RFC 1890ASCII, PDF, HTML RTP Profile for Audio and Video Conferences with Minimal Control Audio-Video Transport Working Group, H. SchulzrinneJanuary 1996Obsoleted by RFC 3551Proposed Standard
RFC 2029ASCII, PDF, HTML RTP Payload Format of Sun's CellB Video Encoding M. Speer, D. HoffmanOctober 1996    Proposed Standard
RFC 2032ASCII, PDF, HTML RTP Payload Format for H.261 Video Streams T. Turletti, C. HuitemaOctober 1996Obsoleted by RFC 4587Proposed Standard
RFC 2035ASCII, PDF, HTML RTP Payload Format for JPEG-compressed Video L. Berc, W. Fenner, R. Frederick, S. McCanneOctober 1996Obsoleted by RFC 2435Proposed Standard
RFC 2038ASCII, PDF, HTML RTP Payload Format for MPEG1/MPEG2 Video D. Hoffman, G. Fernando, V. GoyalOctober 1996Obsoleted by RFC 2250Proposed Standard
RFC 2190ASCII, PDF, HTML RTP Payload Format for H.263 Video Streams C. ZhuSeptember 1997    Historic (changed from Proposed Standard January 2007)
RFC 2198ASCII, PDF, HTML RTP Payload for Redundant Audio Data C. Perkins, I. Kouvelas, O. Hodson, V. Hardman, M. Handley, J.C. Bolot, A. Vega-Garcia, S. Fosse-ParisisSeptember 1997Updated by RFC 6354Proposed Standard
RFC 2250ASCII, PDF, HTML RTP Payload Format for MPEG1/MPEG2 Video D. Hoffman, G. Fernando, V. Goyal, M. CivanlarJanuary 1998Errata, Obsoletes RFC 2038Proposed Standard
RFC 2326ASCII, PDF, HTML Real Time Streaming Protocol (RTSP) H. Schulzrinne, A. Rao, R. LanphierApril 1998Errata, Obsoleted by RFC 7826Proposed Standard
RFC 2327ASCII, PDF, HTML SDP: Session Description Protocol M. Handley, V. JacobsonApril 1998Errata, Obsoleted by RFC 4566, Updated by RFC 3266Proposed Standard
RFC 2343ASCII, PDF, HTML RTP Payload Format for Bundled MPEG M. Civanlar, G. Cash, B. HaskellMay 1998    Experimental
RFC 2354ASCII, PDF, HTML Options for Repair of Streaming Media C. Perkins, O. HodsonJune 1998    Informational
RFC 2429ASCII, PDF, HTML RTP Payload Format for the 1998 Version of ITU-T Rec. H.263 Video (H.263+) C. Bormann, L. Cline, G. Deisher, T. Gardos, C. Maciocco, D. Newell, J. Ott, G. Sullivan, S. Wenger, C. ZhuOctober 1998Obsoleted by RFC 4629Proposed Standard
RFC 2431ASCII, PDF, HTML RTP Payload Format for BT.656 Video Encoding D. TynanOctober 1998    Proposed Standard
RFC 2435ASCII, PDF, HTML RTP Payload Format for JPEG-compressed Video L. Berc, W. Fenner, R. Frederick, S. McCanne, P. StewartOctober 1998Errata, Obsoletes RFC 2035Proposed Standard
RFC 2508ASCII, PDF, HTML Compressing IP/UDP/RTP Headers for Low-Speed Serial Links S. Casner, V. JacobsonFebruary 1999    Proposed Standard
RFC 2543ASCII, PDF, HTML SIP: Session Initiation Protocol M. Handley, H. Schulzrinne, E. Schooler, J. RosenbergMarch 1999Obsoleted by RFC 3261, RFC 3262, RFC 3263, RFC 3264, RFC 3265Proposed Standard
RFC 2719ASCII, PDF, HTML Framework Architecture for Signaling Transport L. Ong, I. Rytina, M. Garcia, H. Schwarzbauer, L. Coene, H. Lin, I. Juhasz, M. Holdrege, C. SharpOctober 1999    Informational
RFC 2733ASCII, PDF, HTML An RTP Payload Format for Generic Forward Error Correction J. Rosenberg, H. SchulzrinneDecember 1999Obsoleted by RFC 5109Proposed Standard
RFC 2736 a.k.a. BCP 36

ASCII, PDF, HTML Guidelines for Writers of RTP Payload Format Specifications M. Handley, C. PerkinsDecember 1999Updated by RFC 8088Best Current Practice
RFC 2762ASCII, PDF, HTML Sampling of the Group Membership in RTP J. Rosenberg, H. SchulzrinneFebruary 2000    Experimental
RFC 2793ASCII, PDF, HTML RTP Payload for Text Conversation G. HellstromMay 2000Obsoleted by RFC 4103Proposed Standard
RFC 2805ASCII, PDF, HTML Media Gateway Control Protocol Architecture and Requirements N. Greene, M. Ramalho, B. RosenApril 2000    Informational
RFC 2824ASCII, PDF, HTML Call Processing Language Framework and Requirements J. Lennox, H. SchulzrinneMay 2000    Informational
RFC 2833ASCII, PDF, HTML RTP Payload for DTMF Digits, Telephony Tones and Telephony Signals H. Schulzrinne, S. PetrackMay 2000Obsoleted by RFC 4733, RFC 4734Proposed Standard
RFC 2862ASCII, PDF, HTML RTP Payload Format for Real-Time Pointers M. Civanlar, G. CashJune 2000    Proposed Standard
RFC 2871ASCII, PDF, HTML A Framework for Telephony Routing over IP J. Rosenberg, H. SchulzrinneJune 2000    Informational
RFC 2885ASCII, PDF, HTML Megaco Protocol version 0.8 F. Cuervo, N. Greene, C. Huitema, A. Rayhan, B. Rosen, J. SegersAugust 2000Obsoleted by RFC 3015Historic (changed from Proposed Standard)
RFC 2886ASCII, PDF, HTML Megaco Errata T. TaylorAugust 2000Obsoleted by RFC 3015Historic (changed from Proposed Standard)
RFC 2916ASCII, PDF, HTML E.164 number and DNS P. FaltstromSeptember 2000Errata, Obsoleted by RFC 3761Proposed Standard
RFC 2959ASCII, PDF, HTML Real-Time Transport Protocol Management Information Base M. Baugher, B. Strahm, I. SuconickOctober 2000    Proposed Standard
RFC 2960ASCII, PDF, HTML Stream Control Transmission Protocol R. Stewart, Q. Xie, K. Morneault, C. Sharp, H. Schwarzbauer, T. Taylor, I. Rytina, M. Kalla, L. Zhang, V. PaxsonOctober 2000Errata, Obsoleted by RFC 4960, Updated by RFC 3309Proposed Standard
RFC 2974ASCII, PDF, HTML Session Announcement Protocol M. Handley, C. Perkins, E. WhelanOctober 2000    Experimental
RFC 2976ASCII, PDF, HTML The SIP INFO Method S. DonovanOctober 2000Obsoleted by RFC 6086Proposed Standard
RFC 3009ASCII, PDF, HTML Registration of parityfec MIME types J. Rosenberg, H. SchulzrinneNovember 2000Obsoleted by RFC 5109Proposed Standard
RFC 3015ASCII, PDF, HTML Megaco Protocol Version 1.0 F. Cuervo, N. Greene, A. Rayhan, C. Huitema, B. Rosen, J. SegersNovember 2000Errata, Obsoletes RFC 2885, RFC 2886, Obsoleted by RFC 3525Proposed Standard
RFC 3016ASCII, PDF, HTML RTP Payload Format for MPEG-4 Audio/Visual Streams Y. Kikuchi, T. Nomura, S. Fukunaga, Y. Matsui, H. KimataNovember 2000Obsoleted by RFC 6416Proposed Standard
RFC 3047ASCII, PDF, HTML RTP Payload Format for ITU-T Recommendation G.722.1 P. LuthiJanuary 2001Errata, Obsoleted by RFC 5577Proposed Standard
RFC 3054ASCII, PDF, HTML Megaco IP Phone Media Gateway Application Profile P. Blatherwick, R. Bell, P. HollandJanuary 2001    Informational
RFC 3057ASCII, PDF, HTML ISDN Q.921-User Adaptation Layer K. Morneault, S. Rengasami, M. Kalla, G. SidebottomFebruary 2001Obsoleted by RFC 4233, Updated by RFC 3807Proposed Standard
RFC 3108ASCII, PDF, HTML Conventions for the use of the Session Description Protocol (SDP) for ATM Bearer Connections R. Kumar, M. MostafaMay 2001ErrataProposed Standard
RFC 3119ASCII, PDF, HTML A More Loss-Tolerant RTP Payload Format for MP3 Audio R. FinlaysonJune 2001Errata, Obsoleted by RFC 5219Proposed Standard
RFC 3158ASCII, PDF, HTML RTP Testing Strategies C. Perkins, J. Rosenberg, H. SchulzrinneAugust 2001    Informational
RFC 3189ASCII, PDF, HTML RTP Payload Format for DV (IEC 61834) Video K. Kobayashi, A. Ogawa, S. Casner, C. BormannJanuary 2002Errata, Obsoleted by RFC 6469Proposed Standard
RFC 3190ASCII, PDF, HTML RTP Payload Format for 12-bit DAT Audio and 20- and 24-bit Linear Sampled Audio K. Kobayashi, A. Ogawa, S. Casner, C. BormannJanuary 2002    Proposed Standard
RFC 3204ASCII, PDF, HTML MIME media types for ISUP and QSIG Objects E. Zimmerer, J. Peterson, A. Vemuri, L. Ong, F. Audet, M. Watson, M. ZonounDecember 2001Errata, Updated by RFC 3459, RFC 5621Proposed Standard
RFC 3219ASCII, PDF, HTML Telephony Routing over IP (TRIP) J. Rosenberg, H. Salama, M. SquireJanuary 2002Errata, Updated by RFC 8602Proposed Standard
RFC 3257ASCII, PDF, HTML Stream Control Transmission Protocol Applicability Statement L. CoeneApril 2002    Informational
RFC 3259ASCII, PDF, HTML A Message Bus for Local Coordination J. Ott, C. Perkins, D. KutscherApril 2002    Informational
RFC 3261ASCII, PDF, HTMLSIP: Session Initiation Protocol J. Rosenberg, H. Schulzrinne, G. Camarillo, A. Johnston, J. Peterson, R. Sparks, M. Handley, E. SchoolerJune 2002Errata, Obsoletes RFC 2543, Updated by RFC 3265, RFC 3853, RFC 4320, RFC 4916, RFC 5393, RFC 5621, RFC 5626, RFC 5630, RFC 5922, RFC 5954, RFC 6026, RFC 6141, RFC 6665, RFC 6878, RFC 7462, RFC 7463, RFC 8217, RFC 8591Proposed Standard
RFC 3262ASCII, PDF, HTML Reliability of Provisional Responses in Session Initiation Protocol (SIP) J. Rosenberg, H. SchulzrinneJune 2002Errata, Obsoletes RFC 2543Proposed Standard
RFC 3263ASCII, PDF, HTML Session Initiation Protocol (SIP): Locating SIP Servers J. Rosenberg, H. SchulzrinneJune 2002Obsoletes RFC 2543, Updated by RFC 7984, RFC 8553Proposed Standard
RFC 3264ASCII, PDF, HTML An Offer/Answer Model with Session Description Protocol (SDP) J. Rosenberg, H. SchulzrinneJune 2002Errata, Obsoletes RFC 2543, Updated by RFC 6157Proposed Standard
RFC 3265ASCII, PDF, HTML Session Initiation Protocol (SIP)-Specific Event Notification A. B. RoachJune 2002Errata, Obsoletes RFC 2543, Obsoleted by RFC 6665, Updates RFC 3261, Updated by RFC 5367, RFC 5727, RFC 6446Proposed Standard
RFC 3266ASCII, PDF, HTML Support for IPv6 in Session Description Protocol (SDP) S. Olson, G. Camarillo, A. B. RoachJune 2002Errata, Obsoleted by RFC 4566, Updates RFC 2327Proposed Standard
RFC 3267ASCII, PDF, HTML Real-Time Transport Protocol (RTP) Payload Format and File Storage Format for the Adaptive Multi-Rate (AMR) and Adaptive Multi-Rate Wideband (AMR-WB) Audio Codecs J. Sjoberg, M. Westerlund, A. Lakaniemi, Q. XieJune 2002Errata, Obsoleted by RFC 4867Proposed Standard
RFC 3310ASCII, PDF, HTML Hypertext Transfer Protocol (HTTP) Digest Authentication Using Authentication and Key Agreement (AKA) A. Niemi, J. Arkko, V. TorvinenSeptember 2002    Informational
RFC 3311ASCII, PDF, HTML The Session Initiation Protocol (SIP) UPDATE Method J. RosenbergOctober 2002    Proposed Standard
RFC 3312ASCII, PDF, PS, PDF with Images, HTML Integration of Resource Management and Session Initiation Protocol (SIP) G. Camarillo, Ed., W. Marshall, Ed., J. RosenbergOctober 2002Errata, Updated by RFC 4032, RFC 5027Proposed Standard
RFC 3313ASCII, PDF, HTMLPrivate Session Initiation Protocol (SIP) Extensions for Media Authorization W. Marshall, Ed.January 2003    Informational
RFC 3319ASCII, PDF, HTML Dynamic Host Configuration Protocol (DHCPv6) Options for Session Initiation Protocol (SIP) Servers H. Schulzrinne, B. VolzJuly 2003    Proposed Standard
RFC 3323ASCII, PDF, HTML A Privacy Mechanism for the Session Initiation Protocol (SIP) J. PetersonNovember 2002ErrataProposed Standard
RFC 3324ASCII, PDF, HTML Short Term Requirements for Network Asserted Identity M. WatsonNovember 2002    Informational
RFC 3325ASCII, PDF, HTML Private Extensions to the Session Initiation Protocol (SIP) for Asserted Identity within Trusted Networks C. Jennings, J. Peterson, M. WatsonNovember 2002Errata, Updated by RFC 5876, RFC 8217Informational
RFC 3326ASCII, PDF, HTML The Reason Header Field for the Session Initiation Protocol (SIP) H. Schulzrinne, D. Oran, G. CamarilloDecember 2002Updated by RFC 8606Proposed Standard
RFC 3327ASCII, PDF, HTML Session Initiation Protocol (SIP) Extension Header Field for Registering Non-Adjacent Contacts D. Willis, B. HoeneisenDecember 2002Errata, Updated by RFC 5626Proposed Standard
RFC 3329ASCII, PDF, HTML Security Mechanism Agreement for the Session Initiation Protocol (SIP) J. Arkko, V. Torvinen, G. Camarillo, A. Niemi, T. HaukkaJanuary 2003ErrataProposed Standard
RFC 3331ASCII, PDF, HTML Signaling System 7 (SS7) Message Transfer Part 2 (MTP2) - User Adaptation Layer K. Morneault, R. Dantu, G. Sidebottom, B. Bidulock, J. HeitzSeptember 2002ErrataProposed Standard
RFC 3332ASCII, PDF, HTMLSignaling System 7 (SS7) Message Transfer Part 3 (MTP3) - User Adaptation Layer (M3UA) G. Sidebottom, Ed., K. Morneault, Ed., J. Pastor-Balbas, Ed.September 2002Obsoleted by RFC 4666Proposed Standard
RFC 3351ASCII, PDF, HTML User Requirements for the Session Initiation Protocol (SIP) in Support of Deaf, Hard of Hearing and Speech-impaired Individuals N. Charlton, M. Gasson, G. Gybels, M. Spanner, A. van WijkAugust 2002    Informational
RFC 3361ASCII, PDF, HTML Dynamic Host Configuration Protocol (DHCP-for-IPv4) Option for Session Initiation Protocol (SIP) Servers H. SchulzrinneAugust 2002    Proposed Standard
RFC 3372 a.k.a. BCP 63

ASCII, PDF, HTML Session Initiation Protocol for Telephones (SIP-T): Context and Architectures A. Vemuri, J. PetersonSeptember 2002ErrataBest Current Practice
RFC 3388ASCII, PDF, HTML Grouping of Media Lines in the Session Description Protocol (SDP) G. Camarillo, G. Eriksson, J. Holler, H. SchulzrinneDecember 2002Obsoleted by RFC 5888Proposed Standard
RFC 3389ASCII, PDF, HTMLReal-time Transport Protocol (RTP) Payload for Comfort Noise (CN) R. ZopfSeptember 2002ErrataProposed Standard
RFC 3398ASCII, PDF, HTML Integrated Services Digital Network (ISDN) User Part (ISUP) to Session Initiation Protocol (SIP) Mapping G. Camarillo, A. B. Roach, J. Peterson, L. OngDecember 2002ErrataProposed Standard
RFC 3420ASCII, PDF, HTML Internet Media Type message/sipfrag R. SparksNovember 2002ErrataProposed Standard
RFC 3428ASCII, PDF, HTMLSession Initiation Protocol (SIP) Extension for Instant Messaging B. Campbell, Ed., J. Rosenberg, H. Schulzrinne, C. Huitema, D. GurleDecember 2002Errata, Updated by RFC 8591Proposed Standard
RFC 3482ASCII, PDF, HTML Number Portability in the Global Switched Telephone Network (GSTN): An Overview M. Foster, T. McGarry, J. YuFebruary 2003    Informational
RFC 3485ASCII, PDF, HTML The Session Initiation Protocol (SIP) and Session Description Protocol (SDP) Static Dictionary for Signaling Compression (SigComp) M. Garcia-Martin, C. Bormann, J. Ott, R. Price, A. B. RoachFebruary 2003Updated by RFC 4896Proposed Standard
RFC 3486ASCII, PDF, HTML Compressing the Session Initiation Protocol (SIP) G. CamarilloFebruary 2003Updated by RFC 5049Proposed Standard
RFC 3487ASCII, PDF, HTML Requirements for Resource Priority Mechanisms for the Session Initiation Protocol (SIP) H. SchulzrinneFebruary 2003    Informational
RFC 3497ASCII, PDF, HTML RTP Payload Format for Society of Motion Picture and Television Engineers (SMPTE) 292M Video L. Gharai, C. Perkins, G. Goncher, A. MankinMarch 2003    Proposed Standard
RFC 3515ASCII, PDF, HTML The Session Initiation Protocol (SIP) Refer Method R. SparksApril 2003Errata, Updated by RFC 7647, RFC 8217Proposed Standard
RFC 3523ASCII, PDF, HTML Internet Emergency Preparedness (IEPREP) Telephony Topology Terminology J. PolkApril 2003    Informational
RFC 3524ASCII, PDF, HTML Mapping of Media Streams to Resource Reservation Flows G. Camarillo, A. MonradApril 2003    Proposed Standard
RFC 3525ASCII, PDF, HTML Gateway Control Protocol Version 1 C. Groves, Ed., M. Pantaleo, Ed., T. Anderson, Ed., T. Taylor, Ed.June 2003Errata, Obsoletes RFC 3015, Obsoleted by RFC 5125Historic (changed from Proposed Standard February 2008)
RFC 3545ASCII, PDF, HTML Enhanced Compressed RTP (CRTP) for Links with High Delay, Packet Loss and Reordering T. Koren, S. Casner, J. Geevarghese, B. Thompson, P. RuddyJuly 2003    Proposed Standard
RFC 3550 a.k.a. STD 64

ASCII, PDF, PS, PDF with Images, HTMLRTP: A Transport Protocol for Real-Time Applications H. Schulzrinne, S. Casner, R. Frederick, V. JacobsonJuly 2003Errata, Obsoletes RFC 1889, Updated by RFC 5506, RFC 5761, RFC 6051, RFC 6222, RFC 7022, RFC 7160, RFC 7164, RFC 8083, RFC 8108Internet Standard (changed from Draft Standard)
RFC 3551 a.k.a. STD 65

ASCII, PDF, PS, PDF with Images, HTML RTP Profile for Audio and Video Conferences with Minimal Control H. Schulzrinne, S. CasnerJuly 2003Obsoletes RFC 1890, Updated by RFC 5761, RFC 7007Internet Standard (changed from Draft Standard)
RFC 3555ASCII, PDF, HTML MIME Type Registration of RTP Payload Formats S. Casner, P. HoschkaJuly 2003Obsoleted by RFC 4855, RFC 4856, Updated by RFC 3625, RFC 4629Proposed Standard
RFC 3556ASCII, PDF, HTML Session Description Protocol (SDP) Bandwidth Modifiers for RTP Control Protocol (RTCP) Bandwidth S. CasnerJuly 2003    Proposed Standard
RFC 3557ASCII, PDF, HTML RTP Payload Format for European Telecommunications Standards Institute (ETSI) European Standard ES 201 108 Distributed Speech Recognition Encoding Q. Xie, Ed.July 2003    Proposed Standard
RFC 3558ASCII, PDF, HTML RTP Payload Format for Enhanced Variable Rate Codecs (EVRC) and Selectable Mode Vocoders (SMV) A. LiJuly 2003Updated by RFC 4788Proposed Standard
RFC 3578ASCII, PDF, HTML Mapping of Integrated Services Digital Network (ISDN) User Part (ISUP) Overlap Signalling to the Session Initiation Protocol (SIP) G. Camarillo, A. B. Roach, J. Peterson, L. OngAugust 2003    Proposed Standard
RFC 3581ASCII, PDF, HTML An Extension to the Session Initiation Protocol (SIP) for Symmetric Response Routing J. Rosenberg, H. SchulzrinneAugust 2003    Proposed Standard
RFC 3605ASCII, PDF, HTML Real Time Control Protocol (RTCP) attribute in Session Description Protocol (SDP) C. HuitemaOctober 2003ErrataProposed Standard
RFC 3608ASCII, PDF, HTML Session Initiation Protocol (SIP) Extension Header Field for Service Route Discovery During Registration D. Willis, B. HoeneisenOctober 2003Updated by RFC 5630Proposed Standard
RFC 3611ASCII, PDF, HTML RTP Control Protocol Extended Reports (RTCP XR) T. Friedman, Ed., R. Caceres, Ed., A. Clark, Ed.November 2003ErrataProposed Standard
RFC 3640ASCII, PDF, HTML RTP Payload Format for Transport of MPEG-4 Elementary Streams J. van der Meer, D. Mackie, V. Swaminathan, D. Singer, P. GentricNovember 2003Updated by RFC 5691Proposed Standard
RFC 3665 a.k.a. BCP 75

ASCII, PDF, HTML Session Initiation Protocol (SIP) Basic Call Flow Examples A. Johnston, S. Donovan, R. Sparks, C. Cunningham, K. SummersDecember 2003ErrataBest Current Practice
RFC 3666 a.k.a. BCP 76

ASCII, PDF, HTML Session Initiation Protocol (SIP) Public Switched Telephone Network (PSTN) Call Flows A. Johnston, S. Donovan, R. Sparks, C. Cunningham, K. SummersDecember 2003ErrataBest Current Practice
RFC 3680ASCII, PDF, HTML A Session Initiation Protocol (SIP) Event Package for Registrations J. RosenbergMarch 2004Errata, Updated by RFC 6140Proposed Standard
RFC 3689ASCII, PDF, HTML General Requirements for Emergency Telecommunication Service (ETS) K. Carlberg, R. AtkinsonFebruary 2004    Informational
RFC 3690ASCII, PDF, HTML IP Telephony Requirements for Emergency Telecommunication Service (ETS) K. Carlberg, R. AtkinsonFebruary 2004    Informational
RFC 3693ASCII, PDF, HTML Geopriv Requirements J. Cuellar, J. Morris, D. Mulligan, J. Peterson, J. PolkFebruary 2004Errata, Updated by RFC 6280, RFC 7459Informational
RFC 3694ASCII, PDF, HTMLThreat Analysis of the Geopriv Protocol M. Danley, D. Mulligan, J. Morris, J. PetersonFebruary 2004Updated by RFC 6280Informational
RFC 3702ASCII, PDF, HTML Authentication, Authorization, and Accounting Requirements for the Session Initiation Protocol (SIP) J. Loughney, G. CamarilloFebruary 2004    Informational
RFC 3711ASCII, PDF, HTML The Secure Real-time Transport Protocol (SRTP) M. Baugher, D. McGrew, M. Naslund, E. Carrara, K. NorrmanMarch 2004Errata, Updated by RFC 5506, RFC 6904Proposed Standard
RFC 3725 a.k.a. BCP 85

ASCII, PDF, HTML Best Current Practices for Third Party Call Control (3pcc) in the Session Initiation Protocol (SIP) J. Rosenberg, J. Peterson, H. Schulzrinne, G. CamarilloApril 2004    Best Current Practice
RFC 3761ASCII, PDF, HTML The E.164 to Uniform Resource Identifiers (URI) Dynamic Delegation Discovery System (DDDS) Application (ENUM) P. Faltstrom, M. MeallingApril 2004Obsoletes RFC 2916, Obsoleted by RFC 6116, RFC 6117Proposed Standard
RFC 3762ASCII, PDF, HTML Telephone Number Mapping (ENUM) Service Registration for H.323 O. LevinApril 2004Updated by RFC 6118Proposed Standard
RFC 3764ASCII, PDF, HTML enumservice registration for Session Initiation Protocol (SIP) Addresses-of-Record J. PetersonApril 2004Updated by RFC 6118Proposed Standard
RFC 3788ASCII, PDF, HTML Security Considerations for Signaling Transport (SIGTRAN) Protocols J. Loughney, M. Tuexen, Ed., J. Pastor-BalbasJune 2004    Proposed Standard
RFC 3807ASCII, PDF, HTML V5.2-User Adaptation Layer (V5UA) E. Weilandt, N. Khanchandani, S. RaoJune 2004Updates RFC 3057Proposed Standard
RFC 3824ASCII, PDF, HTML Using E.164 numbers with the Session Initiation Protocol (SIP) J. Peterson, H. Liu, J. Yu, B. CampbellJune 2004    Informational
RFC 3825ASCII, PDF, HTML Dynamic Host Configuration Protocol Option for Coordinate-based Location Configuration Information J. Polk, J. Schnizlein, M. LinsnerJuly 2004Obsoleted by RFC 6225Proposed Standard
RFC 3840ASCII, PDF, HTML Indicating User Agent Capabilities in the Session Initiation Protocol (SIP) J. Rosenberg, H. Schulzrinne, P. KyzivatAugust 2004    Proposed Standard
RFC 3841ASCII, PDF, HTML Caller Preferences for the Session Initiation Protocol (SIP) J. Rosenberg, H. Schulzrinne, P. KyzivatAugust 2004    Proposed Standard
RFC 3842ASCII, PDF, HTML A Message Summary and Message Waiting Indication Event Package for the Session Initiation Protocol (SIP) R. MahyAugust 2004    Proposed Standard
RFC 3853ASCII, PDF, HTML S/MIME Advanced Encryption Standard (AES) Requirement for the Session Initiation Protocol (SIP) J. PetersonJuly 2004Updates RFC 3261Proposed Standard
RFC 3856ASCII, PDF, HTML A Presence Event Package for the Session Initiation Protocol (SIP) J. RosenbergAugust 2004ErrataProposed Standard
RFC 3857ASCII, PDF, HTML A Watcher Information Event Template-Package for the Session Initiation Protocol (SIP) J. RosenbergAugust 2004    Proposed Standard
RFC 3868ASCII, PDF, HTML Signalling Connection Control Part User Adaptation Layer (SUA) J. Loughney, Ed., G. Sidebottom, L. Coene, G. Verwimp, J. Keller, B. BidulockOctober 2004    Proposed Standard
RFC 3872ASCII, PDF, HTML Management Information Base for Telephony Routing over IP (TRIP) D. Zinman, D. Walker, J. JiangSeptember 2004    Proposed Standard
RFC 3873ASCII, PDF, HTML Stream Control Transmission Protocol (SCTP) Management Information Base (MIB) J. Pastor, M. BelinchonSeptember 2004    Proposed Standard
RFC 3880ASCII, PDF, HTML Call Processing Language (CPL): A Language for User Control of Internet Telephony Services J. Lennox, X. Wu, H. SchulzrinneOctober 2004    Proposed Standard
RFC 3890ASCII, PDF, HTML A Transport Independent Bandwidth Modifier for the Session Description Protocol (SDP) M. WesterlundSeptember 2004    Proposed Standard
RFC 3891ASCII, PDF, HTML The Session Initiation Protocol (SIP) "Replaces" Header R. Mahy, B. Biggs, R. DeanSeptember 2004ErrataProposed Standard
RFC 3892ASCII, PDF, HTML The Session Initiation Protocol (SIP) Referred-By Mechanism R. SparksSeptember 2004Updated by RFC 8217Proposed Standard
RFC 3893ASCII, PDF, HTML Session Initiation Protocol (SIP) Authenticated Identity Body (AIB) Format J. PetersonSeptember 2004    Proposed Standard
RFC 3903ASCII, PDF, HTML Session Initiation Protocol (SIP) Extension for Event State Publication A. Niemi, Ed.October 2004    Proposed Standard
RFC 3911ASCII, PDF, HTML The Session Initiation Protocol (SIP) "Join" Header R. Mahy, D. PetrieOctober 2004    Proposed Standard
RFC 3951ASCII, PDF, HTML Internet Low Bit Rate Codec (iLBC) S. Andersen, A. Duric, H. Astrom, R. Hagen, W. Kleijn, J. LindenDecember 2004    Experimental
RFC 3952ASCII, PDF, HTML Real-time Transport Protocol (RTP) Payload Format for internet Low Bit Rate Codec (iLBC) Speech A. Duric, S. AndersenDecember 2004    Experimental
RFC 3953ASCII, PDF, HTMLTelephone Number Mapping (ENUM) Service Registration for Presence Services J. PetersonJanuary 2005Updated by RFC 6118Proposed Standard
RFC 3959ASCII, PDF, HTML The Early Session Disposition Type for the Session Initiation Protocol (SIP) G. CamarilloDecember 2004ErrataProposed Standard
RFC 3960ASCII, PDF, HTML Early Media and Ringing Tone Generation in the Session Initiation Protocol (SIP) G. Camarillo, H. SchulzrinneDecember 2004    Informational
RFC 3966ASCII, PDF, HTML The tel URI for Telephone Numbers H. SchulzrinneDecember 2004Errata, Obsoletes RFC 2806, Updated by RFC 5341Proposed Standard
RFC 3968 a.k.a. BCP 98

ASCII, PDF, HTML The Internet Assigned Number Authority (IANA) Header Field Parameter Registry for the Session Initiation Protocol (SIP) G. CamarilloDecember 2004Updates RFC 3427Best Current Practice
RFC 3969 a.k.a. BCP 99

ASCII, PDF, HTML The Internet Assigned Number Authority (IANA) Uniform Resource Identifier (URI) Parameter Registry for the Session Initiation Protocol (SIP) G. CamarilloDecember 2004Updates RFC 3427, Updated by RFC 5727Best Current Practice
RFC 3984ASCII, PDF, HTMLRTP Payload Format for H.264 Video S. Wenger, M.M. Hannuksela, T. Stockhammer, M. Westerlund, D. SingerFebruary 2005Obsoleted by RFC 6184Proposed Standard
RFC 3994ASCII, PDF, HTML Indication of Message Composition for Instant Messaging H. SchulzrinneJanuary 2005    Proposed Standard
RFC 4002ASCII, PDF, HTML IANA Registration for Enumservice 'web' and 'ft' R. Brandner, L. Conroy, R. StastnyFebruary 2005Updated by RFC 6118Proposed Standard
RFC 4028ASCII, PDF, HTMLSession Timers in the Session Initiation Protocol (SIP)S. Donovan, J. RosenbergApril 2005ErrataProposed Standard
RFC 4032ASCII, PDF, HTML Update to the Session Initiation Protocol (SIP) Preconditions Framework G. Camarillo, P. KyzivatMarch 2005Updates RFC 3312Proposed Standard
RFC 4040ASCII, PDF, HTMLRTP Payload Format for a 64 kbit/s Transparent CallR. KreuterApril 2005    Proposed Standard
RFC 4060ASCII, PDF, HTMLRTP Payload Formats for European Telecommunications Standards Institute (ETSI) European Standard ES 202 050, ES 202 211, and ES 202 212 Distributed Speech Recognition EncodingQ. Xie, D. PearceMay 2005ErrataProposed Standard
RFC 4079ASCII, PDF, HTMLA Presence Architecture for the Distribution of GEOPRIV Location ObjectsJ. PetersonJuly 2005    Informational
RFC 4083ASCII, PDF, HTMLInput 3rd-Generation Partnership Project (3GPP) Release 5 Requirements on the Session Initiation Protocol (SIP)M. Garcia-MartinMay 2005    Informational
RFC 4091ASCII, PDF, HTMLThe Alternative Network Address Types (ANAT) Semantics for the Session Description Protocol (SDP) Grouping FrameworkG. Camarillo, J. RosenbergJune 2005Obsoleted by RFC 5245Proposed Standard
RFC 4092ASCII, PDF, HTMLUsage of the Session Description Protocol (SDP) Alternative Network Address Types (ANAT) Semantics in the Session Initiation Protocol (SIP)G. Camarillo, J. RosenbergJune 2005Obsoleted by RFC 5245Proposed Standard
RFC 4102ASCII, PDF, HTMLRegistration of the text/red MIME Sub-TypeP. JonesJune 2005Errata, Updated by RFC 6354Proposed Standard
RFC 4103ASCII, PDF, HTMLRTP Payload for Text ConversationG. Hellstrom, P. JonesJune 2005Errata, Obsoletes RFC 2793Proposed Standard
RFC 4114ASCII, PDF, HTMLE.164 Number Mapping for the Extensible Provisioning Protocol (EPP)S. HollenbeckJune 2005ErrataProposed Standard
RFC 4117ASCII, PDF, HTMLTranscoding Services Invocation in the Session Initiation Protocol (SIP) Using Third Party Call Control (3pcc)G. Camarillo, E. Burger, H. Schulzrinne, A. van WijkJune 2005ErrataInformational
RFC 4119ASCII, PDF, HTMLA Presence-based GEOPRIV Location Object FormatJ. PetersonDecember 2005Errata, Updated by RFC 5139, RFC 5491, RFC 7459Proposed Standard
RFC 4129ASCII, PDF, HTMLDigital Private Network Signaling System (DPNSS)/Digital Access Signaling System 2 (DASS 2) Extensions to the IUA ProtocolR. Mukundan, K. Morneault, N. MangalpallySeptember 2005    Proposed Standard
RFC 4145ASCII, PDF, HTMLTCP-Based Media Transport in the Session Description Protocol (SDP)D. Yon, G. CamarilloSeptember 2005Updated by RFC 4572Proposed Standard
RFC 4165ASCII, PDF, HTMLSignaling System 7 (SS7) Message Transfer Part 2 (MTP2) - User Peer-to-Peer Adaptation Layer (M2PA)T. George, B. Bidulock, R. Dantu, H. Schwarzbauer, K. MorneaultSeptember 2005ErrataProposed Standard
RFC 4166ASCII, PDF, HTMLTelephony Signalling Transport over Stream Control Transmission Protocol (SCTP) Applicability StatementL. Coene, J. Pastor-BalbasFebruary 2006    Informational
RFC 4168ASCII, PDF, HTMLThe Stream Control Transmission Protocol (SCTP) as a Transport for the Session Initiation Protocol (SIP)J. Rosenberg, H. Schulzrinne, G. CamarilloOctober 2005    Proposed Standard
RFC 4170 a.k.a. BCP 110

ASCII, PDF, HTMLTunneling Multiplexed Compressed RTP (TCRTP)B. Thompson, T. Koren, D. WingNovember 2005    Best Current Practice
RFC 4175ASCII, PDF, HTMLRTP Payload Format for Uncompressed VideoL. Gharai, C. PerkinsSeptember 2005Errata, Updated by RFC 4421Proposed Standard
RFC 4184ASCII, PDF, HTMLRTP Payload Format for AC-3 AudioB. Link, T. Hager, J. FlaksOctober 2005    Proposed Standard
RFC 4189ASCII, PDF, HTMLRequirements for End-to-Middle Security for the Session Initiation Protocol (SIP)K. Ono, S. TachimotoOctober 2005    Informational
RFC 4190ASCII, PDF, HTMLFramework for Supporting Emergency Telecommunications Service (ETS) in IP TelephonyK. Carlberg, I. Brown, C. BeardNovember 2005    Informational
RFC 4233ASCII, PDF, HTMLIntegrated Services Digital Network (ISDN) Q.921-User Adaptation LayerK. Morneault, S. Rengasami, M. Kalla, G. SidebottomJanuary 2006Obsoletes RFC 3057, Updated by RFC 5133Proposed Standard
RFC 4235ASCII, PDF, HTMLAn INVITE-Initiated Dialog Event Package for the Session Initiation Protocol (SIP)J. Rosenberg, H. Schulzrinne, R. Mahy, Ed.November 2005Errata, Updated by RFC 7463Proposed Standard
RFC 4244ASCII, PDF, HTMLAn Extension to the Session Initiation Protocol (SIP) for Request History InformationM. Barnes, Ed.November 2005Errata, Obsoleted by RFC 7044Proposed Standard
RFC 4245ASCII, PDF, HTMLHigh-Level Requirements for Tightly Coupled SIP ConferencingO. Levin, R. EvenNovember 2005    Informational
RFC 4247ASCII, PDF, HTMLRequirements for Header Compression over MPLSJ. Ash, B. Goode, J. Hand, R. ZhangNovember 2005    Informational
RFC 4298ASCII, PDF, HTMLRTP Payload Format for BroadVoice Speech CodecsJ.-H. Chen, W. Lee, J. ThyssenDecember 2005    Proposed Standard
RFC 4313ASCII, PDF, HTMLRequirements for Distributed Control of Automatic Speech Recognition (ASR), Speaker Identification/Speaker Verification (SI/SV), and Text-to-Speech (TTS) ResourcesD. OranDecember 2005    Informational
RFC 4317ASCII, PDF, HTMLSession Description Protocol (SDP) Offer/Answer ExamplesA. Johnston, R. SparksDecember 2005    Informational
RFC 4320ASCII, PDF, HTMLActions Addressing Identified Issues with the Session Initiation Protocol's (SIP) Non-INVITE TransactionR. SparksJanuary 2006Updates RFC 3261Proposed Standard
RFC 4321ASCII, PDF, HTMLProblems Identified Associated with the Session Initiation Protocol's (SIP) Non-INVITE TransactionR. SparksJanuary 2006    Informational
RFC 4348ASCII, PDF, HTMLReal-Time Transport Protocol (RTP) Payload Format for the Variable-Rate Multimode Wideband (VMR-WB) Audio CodecS. AhmadiJanuary 2006Updated by RFC 4424Proposed Standard
RFC 4351ASCII, PDF, HTMLReal-Time Transport Protocol (RTP) Payload for Text Conversation Interleaved in an Audio StreamG. Hellstrom, P. JonesJanuary 2006    Historic
RFC 4352ASCII, PDF, HTMLRTP Payload Format for the Extended Adaptive Multi-Rate Wideband (AMR-WB+) Audio CodecJ. Sjoberg, M. Westerlund, A. Lakaniemi, S. WengerJanuary 2006ErrataProposed Standard
RFC 4353ASCII, PDF, HTMLA Framework for Conferencing with the Session Initiation Protocol (SIP)J. RosenbergFebruary 2006    Informational
RFC 4355ASCII, PDF, HTMLIANA Registration for Enumservices email, fax, mms, ems, and smsR. Brandner, L. Conroy, R. StastnyJanuary 2006Updated by RFC 6118Proposed Standard
RFC 4375ASCII, PDF, HTMLEmergency Telecommunications Services (ETS) Requirements for a Single Administrative DomainK. CarlbergJanuary 2006    Informational
RFC 4376ASCII, PDF, HTMLRequirements for Floor Control ProtocolsP. Koskelainen, J. Ott, H. Schulzrinne, X. WuFebruary 2006    Informational
RFC 4396ASCII, PDF, HTMLRTP Payload Format for 3rd Generation Partnership Project (3GPP) Timed TextJ. Rey, Y. MatsuiFebruary 2006ErrataProposed Standard
RFC 4411ASCII, PDF, HTMLExtending the Session Initiation Protocol (SIP) Reason Header for Preemption EventsJ. PolkFebruary 2006    Proposed Standard
RFC 4412ASCII, PDF, HTMLCommunications Resource Priority for the Session Initiation Protocol (SIP)H. Schulzrinne, J. PolkFebruary 2006Updated by RFC 7134Proposed Standard
RFC 4414ASCII, PDF, HTMLAn ENUM Registry Type for the Internet Registry Information Service (IRIS) A. NewtonFebruary 2006    Proposed Standard
RFC 4415ASCII, PDF, HTMLIANA Registration for Enumservice VoiceR. Brandner, L. Conroy, R. StastnyFebruary 2006Updated by RFC 6118Proposed Standard
RFC 4421ASCII, PDF, HTMLRTP Payload Format for Uncompressed Video: Additional Colour Sampling ModesC. PerkinsFebruary 2006Updates RFC 4175Proposed Standard
RFC 4424ASCII, PDF, HTMLReal-Time Transport Protocol (RTP) Payload Format for the Variable-Rate Multimode Wideband (VMR-WB) Extension Audio CodecS. AhmadiFebruary 2006Updates RFC 4348Proposed Standard
RFC 4425ASCII, PDF, HTMLRTP Payload Format for Video Codec 1 (VC-1)A. KlemetsFebruary 2006ErrataProposed Standard
RFC 4435ASCII, PDF, HTMLA Framework for the Usage of Internet Media Guides (IMGs)Y. Nomura, R. Walsh, J-P. Luoma, H. Asaeda, H. SchulzrinneApril 2006    Informational
RFC 4453ASCII, PDF, HTMLRequirements for Consent-Based Communications in the Session Initiation Protocol (SIP)J. Rosenberg, G. Camarillo, Ed., D. WillisApril 2006    Informational
RFC 4473ASCII, PDF, HTMLRequirements for Internet Media Guides (IMGs)Y. Nomura, R. Walsh, J-P. Luoma, J. Ott, H. SchulzrinneMay 2006    Informational
RFC 4474ASCII, PDF, HTMLEnhancements for Authenticated Identity Management in the Session Initiation Protocol (SIP)J. Peterson, C. JenningsAugust 2006Errata, Obsoleted by RFC 8224Proposed Standard
RFC 4475ASCII, PDF, HTMLSession Initiation Protocol (SIP) Torture Test MessagesR. Sparks, Ed., A. Hawrylyshen, A. Johnston, J. Rosenberg, H. SchulzrinneMay 2006    Informational
RFC 4479ASCII, PDF, HTMLA Data Model for PresenceJ. RosenbergJuly 2006ErrataProposed Standard
RFC 4480ASCII, PDF, HTMLRPID: Rich Presence Extensions to the Presence Information Data Format (PIDF)H. Schulzrinne, V. Gurbani, P. Kyzivat, J. RosenbergJuly 2006ErrataProposed Standard
RFC 4481ASCII, PDF, HTMLTimed Presence Extensions to the Presence Information Data Format (PIDF) to Indicate Status Information for Past and Future Time IntervalsH. SchulzrinneJuly 2006    Proposed Standard
RFC 4482ASCII, PDF, HTMLCIPID: Contact Information for the Presence Information Data FormatH. SchulzrinneJuly 2006    Proposed Standard
RFC 4483ASCII, PDF, HTMLA Mechanism for Content Indirection in Session Initiation Protocol (SIP) MessagesE. Burger, Ed.May 2006ErrataProposed Standard
RFC 4484ASCII, PDF, HTMLTrait-Based Authorization Requirements for the Session Initiation Protocol (SIP)J. Peterson, J. Polk, D. Sicker, H. TschofenigAugust 2006    Informational
RFC 4485ASCII, PDF, HTMLGuidelines for Authors of Extensions to the Session Initiation Protocol (SIP)J. Rosenberg, H. SchulzrinneMay 2006    Informational
RFC 4488ASCII, PDF, HTMLSuppression of Session Initiation Protocol (SIP) REFER Method Implicit SubscriptionO. LevinMay 2006    Proposed Standard
RFC 4497 a.k.a. BCP 117

ASCII, PDF, HTMLInterworking between the Session Initiation Protocol (SIP) and QSIGJ. Elwell, F. Derks, P. Mourot, O. RousseauMay 2006    Best Current Practice
RFC 4508ASCII, PDF, HTMLConveying Feature Tags with the Session Initiation Protocol (SIP) REFER MethodO. Levin, A. JohnstonMay 2006Updated by RFC 8217Proposed Standard
RFC 4538ASCII, PDF, HTMLRequest Authorization through Dialog Identification in the Session Initiation Protocol (SIP)J. RosenbergJune 2006    Proposed Standard
RFC 4566ASCII, PDF, HTMLSDP: Session Description ProtocolM. Handley, V. Jacobson, C. PerkinsJuly 2006Errata, Obsoletes RFC 2327, RFC 3266Proposed Standard
RFC 4567ASCII, PDF, HTMLKey Management Extensions for Session Description Protocol (SDP) and Real Time Streaming Protocol (RTSP)J. Arkko, F. Lindholm, M. Naslund, K. Norrman, E. CarraraJuly 2006ErrataProposed Standard
RFC 4568ASCII, PDF, HTMLSession Description Protocol (SDP) Security Descriptions for Media StreamsF. Andreasen, M. Baugher, D. WingJuly 2006    Proposed Standard
RFC 4569ASCII, PDF, HTMLInternet Assigned Number Authority (IANA) Registration of the Message Media Feature TagG. CamarilloJuly 2006    Informational
RFC 4570ASCII, PDF, HTMLSession Description Protocol (SDP) Source FiltersB. Quinn, R. FinlaysonJuly 2006ErrataProposed Standard
RFC 4571ASCII, PDF, HTMLFraming Real-time Transport Protocol (RTP) and RTP Control Protocol (RTCP) Packets over Connection-Oriented TransportJ. LazzaroJuly 2006ErrataProposed Standard
RFC 4572ASCII, PDF, HTMLConnection-Oriented Media Transport over the Transport Layer Security (TLS) Protocol in the Session Description Protocol (SDP)J. LennoxJuly 2006Obsoleted by RFC 8122, Updates RFC 4145Proposed Standard
RFC 4573ASCII, PDF, HTMLMIME Type Registration for RTP Payload Format for H.224R. Even, A. LochbaumJuly 2006    Proposed Standard
RFC 4574ASCII, PDF, HTMLThe Session Description Protocol (SDP) Label AttributeO. Levin, G. CamarilloAugust 2006    Proposed Standard
RFC 4575ASCII, PDF, HTMLA Session Initiation Protocol (SIP) Event Package for Conference StateJ. Rosenberg, H. Schulzrinne, O. Levin, Ed.August 2006    Proposed Standard
RFC 4579 a.k.a. BCP 119

ASCII, PDF, HTMLSession Initiation Protocol (SIP) Call Control - Conferencing for User AgentsA. Johnston, O. LevinAugust 2006    Best Current Practice
RFC 4582ASCII, PDF, HTMLThe Binary Floor Control Protocol (BFCP)G. Camarillo, J. Ott, K. DrageNovember 2006    Proposed Standard
RFC 4583ASCII, PDF, HTMLSession Description Protocol (SDP) Format for Binary Floor Control Protocol (BFCP) StreamsG. CamarilloNovember 2006ErrataProposed Standard
RFC 4585ASCII, PDF, HTMLExtended RTP Profile for Real-time Transport Control Protocol (RTCP)-Based Feedback (RTP/AVPF)J. Ott, S. Wenger, N. Sato, C. Burmeister, J. ReyJuly 2006Errata, Updated by RFC 5506, RFC 8108Proposed Standard
RFC 4586ASCII, PDF, HTMLExtended RTP Profile for Real-time Transport Control Protocol (RTCP)-Based Feedback: Results of the Timing Rule SimulationsC. Burmeister, R. Hakenberg, A. Miyazaki, J. Ott, N. Sato, S. FukunagaJuly 2006ErrataInformational
RFC 4587ASCII, PDF, HTMLRTP Payload Format for H.261 Video StreamsR. EvenAugust 2006Errata, Obsoletes RFC 2032Proposed Standard
RFC 4588ASCII, PDF, HTMLRTP Retransmission Payload FormatJ. Rey, D. Leon, A. Miyazaki, V. Varsa, R. HakenbergJuly 2006ErrataProposed Standard
RFC 4589ASCII, PDF, HTMLLocation Types RegistryH. Schulzrinne, H. TschofenigJuly 2006    Proposed Standard
RFC 4596ASCII, PDF, HTMLGuidelines for Usage of the Session Initiation Protocol (SIP) Caller Preferences ExtensionJ. Rosenberg, P. KyzivatJuly 2006ErrataInformational
RFC 4597ASCII, PDF, HTMLConferencing ScenariosR. Even, N. IsmailAugust 2006    Informational
RFC 4598ASCII, PDF, HTMLReal-time Transport Protocol (RTP) Payload Format for Enhanced AC-3 (E-AC-3) AudioB. LinkJuly 2006    Proposed Standard
RFC 4628ASCII, PDF, HTMLRTP Payload Format for H.263 Moving RFC 2190 to Historic StatusR. EvenJanuary 2007    Informational
RFC 4629ASCII, PDF, HTMLRTP Payload Format for ITU-T Rec. H.263 VideoJ. Ott, C. Bormann, G. Sullivan, S. Wenger, R. Even, Ed.January 2007Obsoletes RFC 2429, Updates RFC 3555Proposed Standard
RFC 4660ASCII, PDF, HTMLFunctional Description of Event Notification FilteringH. Khartabil, E. Leppanen, M. Lonnfors, J. Costa-RequenaSeptember 2006Errata, Updated by RFC 6665Proposed Standard
RFC 4661ASCII, PDF, HTMLAn Extensible Markup Language (XML)-Based Format for Event Notification FilteringH. Khartabil, E. Leppanen, M. Lonnfors, J. Costa-RequenaSeptember 2006ErrataProposed Standard
RFC 4662ASCII, PDF, HTMLA Session Initiation Protocol (SIP) Event Notification Extension for Resource ListsA. B. Roach, B. Campbell, J. RosenbergAugust 2006ErrataProposed Standard
RFC 4666ASCII, PDF, HTMLSignaling System 7 (SS7) Message Transfer Part 3 (MTP3) - User Adaptation Layer (M3UA)K. Morneault, Ed., J. Pastor-Balbas, Ed.September 2006Errata, Obsoletes RFC 3332Proposed Standard
RFC 4676ASCII, PDF, HTMLDynamic Host Configuration Protocol (DHCPv4 and DHCPv6) Option for Civic Addresses Configuration InformationH. SchulzrinneOctober 2006Errata, Obsoleted by RFC 4776Proposed Standard
RFC 4694ASCII, PDF, HTMLNumber Portability Parameters for the "tel" URIJ. YuOctober 2006    Proposed Standard
RFC 4695ASCII, PDF, HTMLRTP Payload Format for MIDIJ. Lazzaro, J. WawrzynekNovember 2006Errata, Obsoleted by RFC 6295Proposed Standard
RFC 4696ASCII, PDF, HTMLAn Implementation Guide for RTP MIDIJ. Lazzaro, J. WawrzynekNovember 2006ErrataInformational
RFC 4725ASCII, PDF, HTMLENUM Validation ArchitectureA. Mayrhofer, B. HoeneisenNovember 2006    Informational
RFC 4730ASCII, PDF, HTMLA Session Initiation Protocol (SIP) Event Package for Key Press Stimulus (KPML)E. Burger, M. DollyNovember 2006ErrataProposed Standard
RFC 4733ASCII, PDF, HTMLRTP Payload for DTMF Digits, Telephony Tones, and Telephony SignalsH. Schulzrinne, T. TaylorDecember 2006Errata, Obsoletes RFC 2833, Updated by RFC 4734, RFC 5244Proposed Standard
RFC 4734ASCII, PDF, HTMLDefinition of Events for Modem, Fax, and Text Telephony SignalsH. Schulzrinne, T. TaylorDecember 2006Obsoletes RFC 2833, Updates RFC 4733Proposed Standard
RFC 4745ASCII, PDF, HTMLCommon Policy: A Document Format for Expressing Privacy PreferencesH. Schulzrinne, H. Tschofenig, J. Morris, J. Cuellar, J. Polk, J. RosenbergFebruary 2007ErrataProposed Standard
RFC 4749ASCII, PDF, HTMLRTP Payload Format for the G.729.1 Audio CodecA. SollaudOctober 2006Updated by RFC 5459Proposed Standard
RFC 4756ASCII, PDF, HTMLForward Error Correction Grouping Semantics in Session Description ProtocolA. LiNovember 2006Obsoleted by RFC 5956Proposed Standard
RFC 4759ASCII, PDF, HTMLThe ENUM Dip Indicator Parameter for the "tel" URIR. Stastny, R. Shockey, L. ConroyDecember 2006    Proposed Standard
RFC 4769ASCII, PDF, HTMLIANA Registration for an Enumservice Containing Public Switched Telephone Network (PSTN) Signaling Information J. Livingood, R. ShockeyNovember 2006Updated by RFC 6118Proposed Standard
RFC 4776ASCII, PDF, HTMLDynamic Host Configuration Protocol (DHCPv4 and DHCPv6) Option for Civic Addresses Configuration InformationH. SchulzrinneNovember 2006Obsoletes RFC 4676, Updated by RFC 5774, RFC 6848Proposed Standard
RFC 4780ASCII, PDF, HTMLManagement Information Base for the Session Initiation Protocol (SIP)K. Lingle, J-F. Mule, J. Maeng, D. WalkerApril 2007    Proposed Standard
RFC 4788ASCII, PDF, HTMLEnhancements to RTP Payload Formats for EVRC Family CodecsQ. Xie, R. KapoorJanuary 2007Updates RFC 3558, Updated by RFC 5188Proposed Standard
RFC 4796ASCII, PDF, HTMLThe Session Description Protocol (SDP) Content AttributeJ. Hautakorpi, G. CamarilloFebruary 2007    Proposed Standard
RFC 4825ASCII, PDF, HTMLThe Extensible Markup Language (XML) Configuration Access Protocol (XCAP)J. RosenbergMay 2007    Proposed Standard
RFC 4826ASCII, PDF, HTMLExtensible Markup Language (XML) Formats for Representing Resource ListsJ. RosenbergMay 2007ErrataProposed Standard
RFC 4827ASCII, PDF, HTMLAn Extensible Markup Language (XML) Configuration Access Protocol (XCAP) Usage for Manipulating Presence Document ContentsM. Isomaki, E. LeppanenMay 2007ErrataProposed Standard
RFC 4855ASCII, PDF, HTMLMedia Type Registration of RTP Payload FormatsS. CasnerFebruary 2007Obsoletes RFC 3555Proposed Standard
RFC 4856ASCII, PDF, HTMLMedia Type Registration of Payload Formats in the RTP Profile for Audio and Video ConferencesS. CasnerFebruary 2007Errata, Obsoletes RFC 3555Proposed Standard
RFC 4867ASCII, PDF, HTMLRTP Payload Format and File Storage Format for the Adaptive Multi-Rate (AMR) and Adaptive Multi-Rate Wideband (AMR-WB) Audio CodecsJ. Sjoberg, M. Westerlund, A. Lakaniemi, Q. XieApril 2007Errata, Obsoletes RFC 3267Proposed Standard
RFC 4901ASCII, PDF, HTMLProtocol Extensions for Header Compression over MPLSJ. Ash, Ed., J. Hand, Ed., A. Malis, Ed.June 2007    Proposed Standard
RFC 4904ASCII, PDF, HTMLRepresenting Trunk Groups in tel/sip Uniform Resource Identifiers (URIs)V. Gurbani, C. JenningsJune 2007    Proposed Standard
RFC 4916ASCII, PDF, HTMLConnected Identity in the Session Initiation Protocol (SIP)J. ElwellJune 2007Updates RFC 3261Proposed Standard
RFC 4958ASCII, PDF, HTMLA Framework for Supporting Emergency Telecommunications Services (ETS) within a Single Administrative DomainK. CarlbergJuly 2007ErrataInformational
RFC 4969ASCII, PDF, HTMLIANA Registration for vCard EnumserviceA. MayrhoferAugust 2007Updated by RFC 6118Proposed Standard
RFC 4975ASCII, PDF, HTMLThe Message Session Relay Protocol (MSRP)B. Campbell, Ed., R. Mahy, Ed., C. Jennings, Ed.September 2007Errata, Updated by RFC 7977, RFC 8591Proposed Standard
RFC 4976ASCII, PDF, HTMLRelay Extensions for the Message Sessions Relay Protocol (MSRP)C. Jennings, R. Mahy, A. B. RoachSeptember 2007Errata, Updated by RFC 7977, RFC 8553Proposed Standard
RFC 4979ASCII, PDF, HTMLIANA Registration for Enumservice 'XMPP'A. MayrhoferAugust 2007Updated by RFC 6118Proposed Standard
RFC 5012ASCII, PDF, HTMLRequirements for Emergency Context Resolution with Internet TechnologiesH. Schulzrinne, R. Marshall, Ed.January 2008ErrataInformational
RFC 5018ASCII, PDF, HTMLConnection Establishment in the Binary Floor Control Protocol (BFCP)G. CamarilloSeptember 2007    Proposed Standard
RFC 5025ASCII, PDF, HTMLPresence Authorization RulesJ. RosenbergDecember 2007ErrataProposed Standard
RFC 5027ASCII, PDF, HTMLSecurity Preconditions for Session Description Protocol (SDP) Media StreamsF. Andreasen, D. WingOctober 2007Updates RFC 3312Proposed Standard
RFC 5028ASCII, PDF, HTMLA Telephone Number Mapping (ENUM) Service Registration for Instant Messaging (IM) ServicesR. MahyOctober 2007Updated by RFC 6118Proposed Standard
RFC 5031ASCII, PDF, HTMLA Uniform Resource Name (URN) for Emergency and Other Well-Known ServicesH. SchulzrinneJanuary 2008Errata, Updated by RFC 7163Proposed Standard
RFC 5039ASCII, PDF, HTMLThe Session Initiation Protocol (SIP) and SpamJ. Rosenberg, C. JenningsJanuary 2008    Informational
RFC 5057ASCII, PDF, HTMLMultiple Dialog Usages in the Session Initiation ProtocolR. SparksNovember 2007    Informational
RFC 5067ASCII, PDF, HTMLInfrastructure ENUM RequirementsS. Lind, P. PfautzNovember 2007    Informational
RFC 5069ASCII, PDF, HTMLSecurity Threats and Requirements for Emergency Call Marking and MappingT. Taylor, Ed., H. Tschofenig, H. Schulzrinne, M. ShanmugamJanuary 2008    Informational
RFC 5076ASCII, PDF, HTMLENUM Validation Information Mapping for the Extensible Provisioning ProtocolB. HoeneisenDecember 2007    Proposed Standard
RFC 5079ASCII, PDF, HTMLRejecting Anonymous Requests in the Session Initiation Protocol (SIP)J. RosenbergDecember 2007    Proposed Standard
RFC 5104ASCII, PDF, HTMLCodec Control Messages in the RTP Audio-Visual Profile with Feedback (AVPF)S. Wenger, U. Chandra, M. Westerlund, B. BurmanFebruary 2008Updated by RFC 7728, RFC 8082Proposed Standard
RFC 5105ASCII, PDF, HTMLENUM Validation Token Format DefinitionO. LendlDecember 2007    Proposed Standard
RFC 5109ASCII, PDF, HTMLRTP Payload Format for Generic Forward Error CorrectionA. Li, Ed.December 2007Errata, Obsoletes RFC 2733, RFC 3009Proposed Standard
RFC 5117ASCII, PDF, HTMLRTP TopologiesM. Westerlund, S. WengerJanuary 2008Errata, Obsoleted by RFC 7667Informational
RFC 5118ASCII, PDF, HTMLSession Initiation Protocol (SIP) Torture Test Messages for Internet Protocol Version 6 (IPv6)V. Gurbani, C. Boulton, R. SparksFebruary 2008ErrataInformational
RFC 5124ASCII, PDF, HTMLExtended Secure RTP Profile for Real-time Transport Control Protocol (RTCP)-Based Feedback (RTP/SAVPF)J. Ott, E. CarraraFebruary 2008    Proposed Standard
RFC 5133ASCII, PDF, HTMLTerminal Endpoint Identifier (TEI) Query Request Number ChangeM. Tuexen, K. MorneaultDecember 2007Updates RFC 4233Proposed Standard
RFC 5139ASCII, PDF, HTMLRevised Civic Location Format for Presence Information Data Format Location Object (PIDF-LO)M. Thomson, J. WinterbottomFebruary 2008Updates RFC 4119Proposed Standard
RFC 5140ASCII, PDF, HTMLA Telephony Gateway REgistration Protocol (TGREP)M. Bangalore, R. Kumar, J. Rosenberg, H. Salama, D.N. ShahMarch 2008ErrataProposed Standard
RFC 5167ASCII, PDF, HTMLMedia Server Control Protocol RequirementsM. Dolly, R. EvenMarch 2008    Informational
RFC 5188ASCII, PDF, HTMLRTP Payload Format for the Enhanced Variable Rate Wideband Codec (EVRC-WB) and the Media Subtype Updates for EVRC-B CodecH. Desineni, Q. XieFebruary 2008Updates RFC 4788Proposed Standard
RFC 5194ASCII, PDF, HTMLFramework for Real-Time Text over IP Using the Session Initiation Protocol (SIP)A. van Wijk, Ed., G. Gybels, Ed.June 2008    Informational
RFC 5196ASCII, PDF, HTMLSession Initiation Protocol (SIP) User Agent Capability Extension to Presence Information Data Format (PIDF)M. Lonnfors, K. KissSeptember 2008    Proposed Standard
RFC 5215ASCII, PDF, HTMLRTP Payload Format for Vorbis Encoded AudioL. BarbatoAugust 2008ErrataProposed Standard
RFC 5219ASCII, PDF, HTMLA More Loss-Tolerant RTP Payload Format for MP3 AudioR. FinlaysonFebruary 2008Obsoletes RFC 3119Proposed Standard
RFC 5222ASCII, PDF, HTMLLoST: A Location-to-Service Translation ProtocolT. Hardie, A. Newton, H. Schulzrinne, H. TschofenigAugust 2008Errata, Updated by RFC 6848Proposed Standard
RFC 5223ASCII, PDF, HTMLDiscovering Location-to-Service Translation (LoST) Servers Using the Dynamic Host Configuration Protocol (DHCP)H. Schulzrinne, J. Polk, H. TschofenigAugust 2008    Proposed Standard
RFC 5239ASCII, PDF, HTMLA Framework for Centralized ConferencingM. Barnes, C. Boulton, O. LevinJune 2008ErrataProposed Standard
RFC 5244ASCII, PDF, HTMLDefinition of Events for Channel-Oriented Telephony SignallingH. Schulzrinne, T. TaylorJune 2008Updates RFC 4733Proposed Standard
RFC 5245ASCII, PDF, HTMLInteractive Connectivity Establishment (ICE): A Protocol for Network Address Translator (NAT) Traversal for Offer/Answer ProtocolsJ. RosenbergApril 2010Errata, Obsoletes RFC 4091, RFC 4092, Obsoleted by RFC 8445, Updated by RFC 6336Proposed Standard
RFC 5261ASCII, PDF, HTMLAn Extensible Markup Language (XML) Patch Operations Framework Utilizing XML Path Language (XPath) SelectorsJ. UrpalainenSeptember 2008ErrataProposed Standard
RFC 5262ASCII, PDF, HTMLPresence Information Data Format (PIDF) Extension for Partial PresenceM. Lonnfors, E. Leppanen, H. Khartabil, J. UrpalainenSeptember 2008    Proposed Standard
RFC 5263ASCII, PDF, HTMLSession Initiation Protocol (SIP) Extension for Partial Notification of Presence InformationM. Lonnfors, J. Costa-Requena, E. Leppanen, H. KhartabilSeptember 2008    Proposed Standard
RFC 5264ASCII, PDF, HTMLPublication of Partial Presence InformationA. Niemi, M. Lonnfors, E. LeppanenSeptember 2008    Proposed Standard
RFC 5278ASCII, PDF, HTMLIANA Registration of Enumservices for Voice and Video MessagingJ. Livingood, D. TroshynskiJuly 2008Updated by RFC 6118Proposed Standard
RFC 5285ASCII, PDF, HTMLA General Mechanism for RTP Header ExtensionsD. Singer, H. DesineniJuly 2008Obsoleted by RFC 8285Proposed Standard
RFC 5333ASCII, PDF, HTMLIANA Registration of Enumservices for Internet CalendaringR. Mahy, B. HoeneisenOctober 2009Updated by RFC 6118Proposed Standard
RFC 5341ASCII, PDF, HTMLThe Internet Assigned Number Authority (IANA) tel Uniform Resource Identifier (URI) Parameter RegistryC. Jennings, V. GurbaniSeptember 2008Updates RFC 3966Proposed Standard
RFC 5344ASCII, PDF, HTMLPresence and Instant Messaging Peering Use CasesA. Houri, E. Aoki, S. ParameswarOctober 2008    Informational
RFC 5346ASCII, PDF, HTMLOperational Requirements for ENUM-Based Softswitch UseJ. Lim, W. Kim, C. Park, L. ConroyOctober 2008ErrataInformational
RFC 5359 a.k.a. BCP 144

ASCII, PDF, HTMLSession Initiation Protocol Service ExamplesA. Johnston, Ed., R. Sparks, C. Cunningham, S. Donovan, K. SummersOctober 2008    Best Current Practice
RFC 5360ASCII, PDF, HTMLA Framework for Consent-Based Communications in the Session Initiation Protocol (SIP)J. Rosenberg, G. Camarillo, Ed., D. WillisOctober 2008Errata, Updated by RFC 8217Proposed Standard
RFC 5361ASCII, PDF, HTMLA Document Format for Requesting ConsentG. CamarilloOctober 2008    Proposed Standard
RFC 5362ASCII, PDF, HTMLThe Session Initiation Protocol (SIP) Pending Additions Event PackageG. CamarilloOctober 2008    Proposed Standard
RFC 5363ASCII, PDF, HTMLFramework and Security Considerations for Session Initiation Protocol (SIP) URI-List ServicesG. Camarillo, A.B. RoachOctober 2008    Proposed Standard
RFC 5364ASCII, PDF, HTMLExtensible Markup Language (XML) Format Extension for Representing Copy Control Attributes in Resource ListsM. Garcia-Martin, G. CamarilloOctober 2008    Proposed Standard
RFC 5365ASCII, PDF, HTMLMultiple-Recipient MESSAGE Requests in the Session Initiation Protocol (SIP)M. Garcia-Martin, G. CamarilloOctober 2008    Proposed Standard
RFC 5366ASCII, PDF, HTMLConference Establishment Using Request-Contained Lists in the Session Initiation Protocol (SIP)G. Camarillo, A. JohnstonOctober 2008    Proposed Standard
RFC 5367ASCII, PDF, HTMLSubscriptions to Request-Contained Resource Lists in the Session Initiation Protocol (SIP)G. Camarillo, A.B. Roach, O. LevinOctober 2008Updates RFC 3265Proposed Standard
RFC 5368ASCII, PDF, HTMLReferring to Multiple Resources in the Session Initiation Protocol (SIP)G. Camarillo, A. Niemi, M. Isomaki, M. Garcia-Martin, H. KhartabilOctober 2008Updated by RFC 8262Proposed Standard
RFC 5369ASCII, PDF, HTMLFramework for Transcoding with the Session Initiation Protocol (SIP)G. CamarilloOctober 2008    Informational
RFC 5370ASCII, PDF, HTMLThe Session Initiation Protocol (SIP) Conference Bridge Transcoding ModelG. CamarilloOctober 2008    Proposed Standard
RFC 5371ASCII, PDF, HTMLRTP Payload Format for JPEG 2000 Video StreamsS. Futemma, E. Itakura, A. LeungOctober 2008    Proposed Standard
RFC 5372ASCII, PDF, HTMLPayload Format for JPEG 2000 Video: Extensions for Scalability and Main Header RecoveryA. Leung, S. Futemma, E. ItakuraOctober 2008    Proposed Standard
RFC 5373ASCII, PDF, HTMLRequesting Answering Modes for the Session Initiation Protocol (SIP)D. Willis, Ed., A. AllenNovember 2008    Proposed Standard
RFC 5390ASCII, PDF, HTMLRequirements for Management of Overload in the Session Initiation ProtocolJ. RosenbergDecember 2008    Informational
RFC 5391ASCII, PDF, HTMLRTP Payload Format for ITU-T Recommendation G.711.1A. SollaudNovember 2008    Proposed Standard
RFC 5393ASCII, PDF, HTMLAddressing an Amplification Vulnerability in Session Initiation Protocol (SIP) Forking ProxiesR. Sparks, Ed., S. Lawrence, A. Hawrylyshen, B. CampenDecember 2008Updates RFC 3261Proposed Standard
RFC 5404ASCII, PDF, HTMLRTP Payload Format for G.719M. Westerlund, I. JohanssonJanuary 2009ErrataProposed Standard
RFC 5407 a.k.a. BCP 147

ASCII, PDF, HTMLExample Call Flows of Race Conditions in the Session Initiation Protocol (SIP)M. Hasebe, J. Koshiko, Y. Suzuki, T. Yoshikawa, P. KyzivatDecember 2008    Best Current Practice
RFC 5411ASCII, PDF, HTMLA Hitchhiker's Guide to the Session Initiation Protocol (SIP)J. RosenbergFebruary 2009    Informational
RFC 5432ASCII, PDF, HTMLQuality of Service (QoS) Mechanism Selection in the Session Description Protocol (SDP)J. Polk, S. Dhesikan, G. CamarilloMarch 2009    Proposed Standard
RFC 5438ASCII, PDF, HTMLInstant Message Disposition Notification (IMDN)E. Burger, H. KhartabilFebruary 2009ErrataProposed Standard
RFC 5450ASCII, PDF, HTMLTransmission Time Offsets in RTP StreamsD. Singer, H. DesineniMarch 2009    Proposed Standard
RFC 5459ASCII, PDF, HTMLG.729.1 RTP Payload Format Update: Discontinuous Transmission (DTX) SupportA. SollaudJanuary 2009Updates RFC 4749Proposed Standard
RFC 5478ASCII, PDF, HTMLIANA Registration of New Session Initiation Protocol (SIP) Resource-Priority NamespacesJ. PolkMarch 2009    Proposed Standard
RFC 5479ASCII, PDF, HTMLRequirements and Analysis of Media Security Management ProtocolsD. Wing, Ed., S. Fries, H. Tschofenig, F. AudetApril 2009ErrataInformational
RFC 5483ASCII, PDF, HTMLENUM Implementation Issues and ExperiencesL. Conroy, K. FujiwaraMarch 2009    Informational
RFC 5484ASCII, PDF, HTMLAssociating Time-Codes with RTP StreamsD. SingerMarch 2009    Proposed Standard
RFC 5486ASCII, PDF, HTMLSession Peering for Multimedia Interconnect (SPEERMINT) TerminologyD. Malas, Ed., D. Meyer, Ed.March 2009    Informational
RFC 5491ASCII, PDF, HTMLGEOPRIV Presence Information Data Format Location Object (PIDF-LO) Usage Clarification, Considerations, and RecommendationsJ. Winterbottom, M. Thomson, H. TschofenigMarch 2009Errata, Updates RFC 4119, Updated by RFC 7459Proposed Standard
RFC 5506ASCII, PDF, HTMLSupport for Reduced-Size Real-Time Transport Control Protocol (RTCP): Opportunities and ConsequencesI. Johansson, M. WesterlundApril 2009Errata, Updates RFC 3550, RFC 3711, RFC 4585Proposed Standard
RFC 5526ASCII, PDF, HTMLThe E.164 to Uniform Resource Identifiers (URI) Dynamic Delegation Discovery System (DDDS) Application for Infrastructure ENUMJ. Livingood, P. Pfautz, R. StastnyApril 2009    Informational
RFC 5527ASCII, PDF, HTMLCombined User and Infrastructure ENUM in the e164.arpa TreeM. Haberler, O. Lendl, R. StastnyMay 2009    Informational
RFC 5547ASCII, PDF, HTMLA Session Description Protocol (SDP) Offer/Answer Mechanism to Enable File TransferM. Garcia-Martin, M. Isomaki, G. Camarillo, S. Loreto, P. KyzivatMay 2009ErrataProposed Standard
RFC 5552ASCII, PDF, HTMLSIP Interface to VoiceXML Media ServicesD. Burke, M. ScottMay 2009ErrataProposed Standard
RFC 5567ASCII, PDF, HTMLAn Architectural Framework for Media Server ControlT. Melanchuk, Ed.June 2009    Informational
RFC 5574ASCII, PDF, HTMLRTP Payload Format for the Speex CodecG. Herlein, J. Valin, A. Heggestad, A. MoizardJune 2009    Proposed Standard
RFC 5576ASCII, PDF, HTMLSource-Specific Media Attributes in the Session Description Protocol (SDP)J. Lennox, J. Ott, T. SchierlJune 2009    Proposed Standard
RFC 5577ASCII, PDF, HTMLRTP Payload Format for ITU-T Recommendation G.722.1P. Luthi, R. EvenJuly 2009Errata, Obsoletes RFC 3047Proposed Standard
RFC 5580ASCII, PDF, HTMLCarrying Location Objects in RADIUS and DiameterH. Tschofenig, Ed., F. Adrangi, M. Jones, A. Lior, B. AbobaAugust 2009Errata, Updated by RFC 8559Proposed Standard
RFC 5582ASCII, PDF, HTMLLocation-to-URL Mapping Architecture and FrameworkH. SchulzrinneSeptember 2009ErrataInformational
RFC 5583ASCII, PDF, HTMLSignaling Media Decoding Dependency in the Session Description Protocol (SDP)T. Schierl, S. WengerJuly 2009ErrataProposed Standard
RFC 5584ASCII, PDF, HTMLRTP Payload Format for the Adaptive TRansform Acoustic Coding (ATRAC) FamilyM. Hatanaka, J. MatsumotoJuly 2009ErrataProposed Standard
RFC 5606ASCII, PDF, HTMLImplications of 'retransmission-allowed' for SIP Location ConveyanceJ. Peterson, T. Hardie, J. MorrisAugust 2009    Informational
RFC 5621ASCII, PDF, HTMLMessage Body Handling in the Session Initiation Protocol (SIP)G. CamarilloSeptember 2009Updates RFC 3204, RFC 3261, RFC 3459, Updated by RFC 8262Proposed Standard
RFC 5626ASCII, PDF, HTMLManaging Client-Initiated Connections in the Session Initiation Protocol (SIP)C. Jennings, Ed., R. Mahy, Ed., F. Audet, Ed.October 2009Updates RFC 3261, RFC 3327Proposed Standard
RFC 5627ASCII, PDF, HTMLObtaining and Using Globally Routable User Agent URIs (GRUUs) in the Session Initiation Protocol (SIP)J. RosenbergOctober 2009ErrataProposed Standard
RFC 5628ASCII, PDF, HTMLRegistration Event Package Extension for Session Initiation Protocol (SIP) Globally Routable User Agent URIs (GRUUs)P. KyzivatOctober 2009ErrataProposed Standard
RFC 5629ASCII, PDF, HTMLA Framework for Application Interaction in the Session Initiation Protocol (SIP)J. RosenbergOctober 2009    Proposed Standard
RFC 5630ASCII, PDF, HTMLThe Use of the SIPS URI Scheme in the Session Initiation Protocol (SIP)F. AudetOctober 2009Updates RFC 3261, RFC 3608Proposed Standard
RFC 5658ASCII, PDF, HTMLAddressing Record-Route Issues in the Session Initiation Protocol (SIP)T. Froment, C. Lebel, B. BonnaerensOctober 2009    Proposed Standard
RFC 5669ASCII, PDF, HTMLThe SEED Cipher Algorithm and Its Use with the Secure Real-Time Transport Protocol (SRTP)S. Yoon, J. Kim, H. Park, H. Jeong, Y. WonAugust 2010    Proposed Standard
RFC 5686ASCII, PDF, HTMLRTP Payload Format for mU-law EMbedded Codec for Low-delay IP Communication (UEMCLIP) Speech CodecY. Hiwasaki, H. OhmuroOctober 2009    Proposed Standard
RFC 5687ASCII, PDF, HTMLGEOPRIV Layer 7 Location Configuration Protocol: Problem Statement and RequirementsH. Tschofenig, H. SchulzrinneMarch 2010    Informational
RFC 5691ASCII, PDF, HTMLRTP Payload Format for Elementary Streams with MPEG Surround Multi-Channel AudioF. de Bont, S. Doehla, M. Schmidt, R. SperschneiderOctober 2009Updates RFC 3640Proposed Standard
RFC 5725ASCII, PDF, HTMLPost-Repair Loss RLE Report Block Type for RTP Control Protocol (RTCP) Extended Reports (XRs)A. Begen, D. Hsu, M. LagueFebruary 2010ErrataProposed Standard
RFC 5760ASCII, PDF, HTMLRTP Control Protocol (RTCP) Extensions for Single-Source Multicast Sessions with Unicast FeedbackJ. Ott, J. Chesterfield, E. SchoolerFebruary 2010Errata, Updated by RFC 6128Proposed Standard
RFC 5761ASCII, PDF, HTMLMultiplexing RTP Data and Control Packets on a Single PortC. Perkins, M. WesterlundApril 2010Errata, Updates RFC 3550, RFC 3551, Updated by RFC 8035Proposed Standard
RFC 5763ASCII, PDF, HTMLFramework for Establishing a Secure Real-time Transport Protocol (SRTP) Security Context Using Datagram Transport Layer Security (DTLS)J. Fischl, H. Tschofenig, E. RescorlaMay 2010ErrataProposed Standard
RFC 5764ASCII, PDF, HTMLDatagram Transport Layer Security (DTLS) Extension to Establish Keys for the Secure Real-time Transport Protocol (SRTP)D. McGrew, E. RescorlaMay 2010Errata, Updated by RFC 7983Proposed Standard
RFC 5767ASCII, PDF, HTMLUser-Agent-Driven Privacy Mechanism for SIPM. Munakata, S. Schubert, T. OhbaApril 2010    Informational
RFC 5768ASCII, PDF, HTMLIndicating Support for Interactive Connectivity Establishment (ICE) in the Session Initiation Protocol (SIP)J. RosenbergApril 2010    Proposed Standard
RFC 5774 a.k.a. BCP 154

ASCII, PDF, HTMLConsiderations for Civic Addresses in the Presence Information Data Format Location Object (PIDF-LO): Guidelines and IANA Registry DefinitionK. Wolf, A. MayrhoferMarch 2010Errata, Updates RFC 4776Best Current Practice
RFC 5808ASCII, PDF, HTMLRequirements for a Location-by-Reference MechanismR. Marshall, Ed.May 2010    Informational
RFC 5839ASCII, PDF, HTMLAn Extension to Session Initiation Protocol (SIP) Events for Conditional Event NotificationA. Niemi, D. Willis, Ed.May 2010    Proposed Standard
RFC 5850ASCII, PDF, HTMLA Call Control and Multi-Party Usage Framework for the Session Initiation Protocol (SIP)R. Mahy, R. Sparks, J. Rosenberg, D. Petrie, A. Johnston, Ed.May 2010ErrataInformational
RFC 5853ASCII, PDF, HTMLRequirements from Session Initiation Protocol (SIP) Session Border Control (SBC) DeploymentsJ. Hautakorpi, Ed., G. Camarillo, R. Penfield, A. Hawrylyshen, M. BhatiaApril 2010    Informational
RFC 5870ASCII, PDF, HTMLA Uniform Resource Identifier for Geographic Locations ('geo' URI)A. Mayrhofer, C. SpanringJune 2010    Proposed Standard
RFC 5874ASCII, PDF, HTMLAn Extensible Markup Language (XML) Document Format for Indicating a Change in XML Configuration Access Protocol (XCAP) ResourcesJ. Rosenberg, J. UrpalainenMay 2010    Proposed Standard
RFC 5875ASCII, PDF, HTMLAn Extensible Markup Language (XML) Configuration Access Protocol (XCAP) Diff Event PackageJ. Urpalainen, D. Willis, Ed.May 2010    Proposed Standard
RFC 5876ASCII, PDF, HTMLUpdates to Asserted Identity in the Session Initiation Protocol (SIP)J. ElwellApril 2010Updates RFC 3325Informational
RFC 5888ASCII, PDF, HTMLThe Session Description Protocol (SDP) Grouping FrameworkG. Camarillo, H. SchulzrinneJune 2010Errata, Obsoletes RFC 3388Proposed Standard
RFC 5897ASCII, PDF, HTMLIdentification of Communications Services in the Session Initiation Protocol (SIP)J. RosenbergJune 2010    Informational
RFC 5898ASCII, PDF, HTMLConnectivity Preconditions for Session Description Protocol (SDP) Media StreamsF. Andreasen, G. Camarillo, D. Oran, D. WingJuly 2010    Proposed Standard
RFC 5922ASCII, PDF, HTMLDomain Certificates in the Session Initiation Protocol (SIP)V. Gurbani, S. Lawrence, A. JeffreyJune 2010Updates RFC 3261Proposed Standard
RFC 5923ASCII, PDF, HTMLConnection Reuse in the Session Initiation Protocol (SIP)V. Gurbani, Ed., R. Mahy, B. TateJune 2010ErrataProposed Standard
RFC 5924ASCII, PDF, HTMLExtended Key Usage (EKU) for Session Initiation Protocol (SIP) X.509 CertificatesS. Lawrence, V. GurbaniJune 2010    Experimental
RFC 5939ASCII, PDF, HTMLSession Description Protocol (SDP) Capability NegotiationF. AndreasenSeptember 2010Errata, Updated by RFC 6871Proposed Standard
RFC 5947ASCII, PDF, HTMLRequirements for Multiple Address of Record (AOR) Reachability Information in the Session Initiation Protocol (SIP)J. Elwell, H. KaplanSeptember 2010    Informational
RFC 5954ASCII, PDF, HTMLEssential Correction for IPv6 ABNF and URI Comparison in RFC 3261V. Gurbani, Ed., B. Carpenter, Ed., B. Tate, Ed.August 2010Errata, Updates RFC 3261Proposed Standard
RFC 5956ASCII, PDF, HTMLForward Error Correction Grouping Semantics in the Session Description ProtocolA. BegenSeptember 2010Obsoletes RFC 4756Proposed Standard
RFC 5964ASCII, PDF, HTMLSpecifying Holes in Location-to-Service Translation (LoST) Service BoundariesJ. Winterbottom, M. ThomsonAugust 2010    Proposed Standard
RFC 5968ASCII, PDF, HTMLGuidelines for Extending the RTP Control Protocol (RTCP)J. Ott, C. PerkinsSeptember 2010    Informational
RFC 5985ASCII, PDF, HTMLHTTP-Enabled Location Delivery (HELD)M. Barnes, Ed.September 2010Updated by RFC 7840Proposed Standard
RFC 5986ASCII, PDF, HTMLDiscovering the Local Location Information Server (LIS)M. Thomson, J. WinterbottomSeptember 2010ErrataProposed Standard
RFC 5993ASCII, PDF, HTMLRTP Payload Format for Global System for Mobile Communications Half Rate (GSM-HR)X. Duan, S. Wang, M. Westerlund, K. Hellwig, I. JohanssonOctober 2010    Proposed Standard
RFC 6026ASCII, PDF, HTMLCorrect Transaction Handling for 2xx Responses to Session Initiation Protocol (SIP) INVITE RequestsR. Sparks, T. ZourzouvillysSeptember 2010Errata, Updates RFC 3261Proposed Standard
RFC 6035ASCII, PDF, HTMLSession Initiation Protocol Event Package for Voice Quality ReportingA. Pendleton, A. Clark, A. Johnston, H. SinnreichNovember 2010ErrataProposed Standard
RFC 6051ASCII, PDF, HTMLRapid Synchronisation of RTP FlowsC. Perkins, T. SchierlNovember 2010Updates RFC 3550Proposed Standard
RFC 6072ASCII, PDF, HTMLCertificate Management Service for the Session Initiation Protocol (SIP)C. Jennings, J. Fischl, Ed.February 2011ErrataProposed Standard
RFC 6080ASCII, PDF, HTMLA Framework for Session Initiation Protocol User Agent Profile DeliveryD. Petrie, S. Channabasappa, Ed.March 2011    Proposed Standard
RFC 6086ASCII, PDF, HTMLSession Initiation Protocol (SIP) INFO Method and Package FrameworkC. Holmberg, E. Burger, H. KaplanJanuary 2011Errata, Obsoletes RFC 2976Proposed Standard
RFC 6116ASCII, PDF, HTMLThe E.164 to Uniform Resource Identifiers (URI) Dynamic Delegation Discovery System (DDDS) Application (ENUM)S. Bradner, L. Conroy, K. FujiwaraMarch 2011Obsoletes RFC 3761Proposed Standard
RFC 6117ASCII, PDF, HTMLIANA Registration of Enumservices: Guide, Template, and IANA ConsiderationsB. Hoeneisen, A. Mayrhofer, J. LivingoodMarch 2011Obsoletes RFC 3761Proposed Standard
RFC 6118ASCII, PDF, HTMLUpdate of Legacy IANA Registrations of EnumservicesB. Hoeneisen, A. MayrhoferMarch 2011Updates RFC 3762, RFC 3764, RFC 3953, RFC 4143, RFC 4002, RFC 4238, RFC 4355, RFC 4415, RFC 4769, RFC 4969, RFC 4979, RFC 5028, RFC 5278, RFC 5333Proposed Standard
RFC 6120ASCII, PDF, HTMLExtensible Messaging and Presence Protocol (XMPP): CoreP. Saint-AndreMarch 2011Errata, Obsoletes RFC 3920, Updated by RFC 7590, RFC 8553Proposed Standard
RFC 6121ASCII, PDF, HTMLExtensible Messaging and Presence Protocol (XMPP): Instant Messaging and PresenceP. Saint-AndreMarch 2011Errata, Obsoletes RFC 3921Proposed Standard
RFC 6122ASCII, PDF, HTMLExtensible Messaging and Presence Protocol (XMPP): Address FormatP. Saint-AndreMarch 2011Errata, Obsoleted by RFC 7622, Updates RFC 3920Proposed Standard
RFC 6128ASCII, PDF, HTMLRTP Control Protocol (RTCP) Port for Source-Specific Multicast (SSM) SessionsA. BegenFebruary 2011Updates RFC 5760Proposed Standard
RFC 6135ASCII, PDF, HTMLAn Alternative Connection Model for the Message Session Relay Protocol (MSRP)C. Holmberg, S. BlauFebruary 2011    Proposed Standard
RFC 6140ASCII, PDF, HTMLRegistration for Multiple Phone Numbers in the Session Initiation Protocol (SIP)A.B. RoachMarch 2011Errata, Updates RFC 3680Proposed Standard
RFC 6141ASCII, PDF, HTMLRe-INVITE and Target-Refresh Request Handling in the Session Initiation Protocol (SIP)G. Camarillo, Ed., C. Holmberg, Y. GaoMarch 2011Updates RFC 3261Proposed Standard
RFC 6155ASCII, PDF, HTMLUse of Device Identity in HTTP-Enabled Location Delivery (HELD)J. Winterbottom, M. Thomson, H. Tschofenig, R. BarnesMarch 2011Updated by RFC 6915Proposed Standard
RFC 6157ASCII, PDF, HTMLIPv6 Transition in the Session Initiation Protocol (SIP)G. Camarillo, K. El Malki, V. GurbaniApril 2011Errata, Updates RFC 3264Proposed Standard
RFC 6184ASCII, PDF, HTMLRTP Payload Format for H.264 VideoY.-K. Wang, R. Even, T. Kristensen, R. JesupMay 2011Errata, Obsoletes RFC 3984Proposed Standard
RFC 6185ASCII, PDF, HTMLRTP Payload Format for H.264 Reduced-Complexity Decoding Operation (RCDO) VideoT. Kristensen, P. LuthiMay 2011    Proposed Standard
RFC 6188ASCII, PDF, HTMLThe Use of AES-192 and AES-256 in Secure RTPD. McGrewMarch 2011    Proposed Standard
RFC 6190ASCII, PDF, HTMLRTP Payload Format for Scalable Video CodingS. Wenger, Y.-K. Wang, T. Schierl, A. EleftheriadisMay 2011ErrataProposed Standard
RFC 6197ASCII, PDF, HTMLLocation-to-Service Translation (LoST) Service List Boundary ExtensionK. WolfApril 2011    Experimental
RFC 6216ASCII, PDF, HTMLExample Call Flows Using Session Initiation Protocol (SIP) Security MechanismsC. Jennings, K. Ono, R. Sparks, B. Hibbard, Ed.April 2011    Informational
RFC 6222ASCII, PDF, HTMLGuidelines for Choosing RTP Control Protocol (RTCP) Canonical Names (CNAMEs)A. Begen, C. Perkins, D. WingApril 2011Obsoleted by RFC 7022, Updates RFC 3550Proposed Standard
RFC 6223ASCII, PDF, HTMLIndication of Support for Keep-AliveC. HolmbergApril 2011    Proposed Standard
RFC 6225ASCII, PDF, HTMLDynamic Host Configuration Protocol Options for Coordinate-Based Location Configuration InformationJ. Polk, M. Linsner, M. Thomson, B. Aboba, Ed.July 2011Errata, Obsoletes RFC 3825Proposed Standard
RFC 6228ASCII, PDF, HTMLSession Initiation Protocol (SIP) Response Code for Indication of Terminated DialogC. HolmbergMay 2011ErrataProposed Standard
RFC 6230ASCII, PDF, HTMLMedia Control Channel FrameworkC. Boulton, T. Melanchuk, S. McGlashanMay 2011    Proposed Standard
RFC 6231ASCII, PDF, HTMLAn Interactive Voice Response (IVR) Control Package for the Media Control Channel FrameworkS. McGlashan, T. Melanchuk, C. BoultonMay 2011Errata, Updated by RFC 6623Proposed Standard
RFC 6236ASCII, PDF, HTMLNegotiation of Generic Image Attributes in the Session Description Protocol (SDP)I. Johansson, K. JungMay 2011ErrataProposed Standard
RFC 6262ASCII, PDF, HTMLRTP Payload Format for IP-MR Speech CodecS. IkoninAugust 2011    Proposed Standard
RFC 6263ASCII, PDF, HTMLApplication Mechanism for Keeping Alive the NAT Mappings Associated with RTP / RTP Control Protocol (RTCP) FlowsX. Marjou, A. SollaudJune 2011    Proposed Standard
RFC 6271ASCII, PDF, HTMLRequirements for SIP-Based Session PeeringJ-F. MuleJune 2011    Informational
RFC 6280 a.k.a. BCP 160

ASCII, PDF, HTMLAn Architecture for Location and Location Privacy in Internet ApplicationsR. Barnes, M. Lepinski, A. Cooper, J. Morris, H. Tschofenig, H. SchulzrinneJuly 2011Updates RFC 3693, RFC 3694Best Current Practice
RFC 6284ASCII, PDF, HTMLPort Mapping between Unicast and Multicast RTP SessionsA. Begen, D. Wing, T. Van CaenegemJune 2011    Proposed Standard
RFC 6285ASCII, PDF, HTMLUnicast-Based Rapid Acquisition of Multicast RTP SessionsB. Ver Steeg, A. Begen, T. Van Caenegem, Z. VaxJune 2011    Proposed Standard
RFC 6295ASCII, PDF, HTMLRTP Payload Format for MIDIJ. Lazzaro, J. WawrzynekJune 2011Obsoletes RFC 4695Proposed Standard
RFC 6315ASCII, PDF, HTMLIANA Registration for Enumservice 'iax'E. Guy, K. DarilionJuly 2011    Informational
RFC 6332ASCII, PDF, HTMLMulticast Acquisition Report Block Type for RTP Control Protocol (RTCP) Extended Reports (XRs)A. Begen, E. FriedrichJuly 2011    Proposed Standard
RFC 6336ASCII, PDF, HTMLIANA Registry for Interactive Connectivity Establishment (ICE) OptionsM. Westerlund, C. PerkinsJuly 2011Updates RFC 5245Proposed Standard
RFC 6341ASCII, PDF, HTMLUse Cases and Requirements for SIP-Based Media Recording (SIPREC)K. Rehor, Ed., L. Portman, Ed., A. Hutton, R. JainAugust 2011    Informational
RFC 6354ASCII, PDF, HTMLForward-Shifted RTP Redundancy Payload SupportQ. XieAugust 2011Updates RFC 2198, RFC 4102Proposed Standard
RFC 6357ASCII, PDF, HTMLDesign Considerations for Session Initiation Protocol (SIP) Overload ControlV. Hilt, E. Noel, C. Shen, A. AbdelalAugust 2011    Informational
RFC 6366ASCII, PDF, HTMLRequirements for an Internet Audio CodecJ. Valin, K. VosAugust 2011    Informational
RFC 6404ASCII, PDF, HTMLSession PEERing for Multimedia INTerconnect (SPEERMINT) Security Threats and Suggested CountermeasuresJ. Seedorf, S. Niccolini, E. Chen, H. ScholzNovember 2011    Informational
RFC 6405ASCII, PDF, HTMLVoice over IP (VoIP) SIP Peering Use CasesA. Uzelac, Ed., Y. Lee, Ed.November 2011    Informational
RFC 6406ASCII, PDF, HTMLSession PEERing for Multimedia INTerconnect (SPEERMINT) ArchitectureD. Malas, Ed., J. Livingood, Ed.November 2011    Informational
RFC 6416ASCII, PDF, HTMLRTP Payload Format for MPEG-4 Audio/Visual StreamsM. Schmidt, F. de Bont, S. Doehla, J. KimOctober 2011Obsoletes RFC 3016Proposed Standard
RFC 6442ASCII, PDF, HTMLLocation Conveyance for the Session Initiation ProtocolJ. Polk, B. Rosen, J. PetersonDecember 2011Errata, Updated by RFC 8262Proposed Standard
RFC 6443ASCII, PDF, HTMLFramework for Emergency Calling Using Internet MultimediaB. Rosen, H. Schulzrinne, J. Polk, A. NewtonDecember 2011Updated by RFC 7852Informational
RFC 6444ASCII, PDF, HTMLLocation Hiding: Problem Statement and RequirementsH. Schulzrinne, L. Liess, H. Tschofenig, B. Stark, A. KuettJanuary 2012    Informational
RFC 6446ASCII, PDF, HTMLSession Initiation Protocol (SIP) Event Notification Extension for Notification Rate ControlA. Niemi, K. Kiss, S. LoretoJanuary 2012Updates RFC 3265Proposed Standard
RFC 6447ASCII, PDF, HTMLFiltering Location Notifications in the Session Initiation Protocol (SIP)R. Mahy, B. Rosen, H. TschofenigJanuary 2012    Proposed Standard
RFC 6461ASCII, PDF, HTMLData for Reachability of Inter-/Intra-NetworK SIP (DRINKS) Use Cases and Protocol RequirementsS. Channabasappa, Ed.January 2012    Informational
RFC 6464ASCII, PDF, HTMLA Real-time Transport Protocol (RTP) Header Extension for Client-to-Mixer Audio Level IndicationJ. Lennox, Ed., E. Ivov, E. MaroccoDecember 2011    Proposed Standard
RFC 6465ASCII, PDF, HTMLA Real-time Transport Protocol (RTP) Header Extension for Mixer-to-Client Audio Level IndicationE. Ivov, Ed., E. Marocco, Ed., J. LennoxDecember 2011    Proposed Standard
RFC 6469ASCII, PDF, HTMLRTP Payload Format for DV (IEC 61834) VideoK. Kobayashi, K. Mishima, S. Casner, C. BormannDecember 2011Obsoletes RFC 3189Proposed Standard
RFC 6501ASCII, PDF, HTMLConference Information Data Model for Centralized Conferencing (XCON)O. Novo, G. Camarillo, D. Morgan, J. UrpalainenMarch 2012    Proposed Standard
RFC 6502ASCII, PDF, HTMLConference Event Package Data Format Extension for Centralized Conferencing (XCON)G. Camarillo, S. Srinivasan, R. Even, J. UrpalainenMarch 2012    Proposed Standard
RFC 6503ASCII, PDF, HTMLCentralized Conferencing Manipulation ProtocolM. Barnes, C. Boulton, S. Romano, H. SchulzrinneMarch 2012ErrataProposed Standard
RFC 6504ASCII, PDF, HTMLCentralized Conferencing Manipulation Protocol (CCMP) Call Flow ExamplesM. Barnes, L. Miniero, R. Presta, S P. RomanoMarch 2012    Informational
RFC 6505ASCII, PDF, HTMLA Mixer Control Package for the Media Control Channel FrameworkS. McGlashan, T. Melanchuk, C. BoultonMarch 2012ErrataProposed Standard
RFC 6544ASCII, PDF, HTMLTCP Candidates with Interactive Connectivity Establishment (ICE)J. Rosenberg, A. Keranen, B. B. Lowekamp, A. B. RoachMarch 2012ErrataProposed Standard
RFC 6562ASCII, PDF, HTMLGuidelines for the Use of Variable Bit Rate Audio with Secure RTPC. Perkins, JM. ValinMarch 2012    Proposed Standard
RFC 6567ASCII, PDF, HTMLProblem Statement and Requirements for Transporting User-to-User Call Control Information in SIPA. Johnston, L. LiessApril 2012    Informational
RFC 6569ASCII, PDF, HTMLGuidelines for Development of an Audio Codec within the IETFJM. Valin, S. Borilin, K. Vos, C. Montgomery, R. ChenMarch 2012    Informational
RFC 6597ASCII, PDF, HTMLRTP Payload Format for Society of Motion Picture and Television Engineers (SMPTE) ST 336 Encoded DataJ. Downs, Ed., J. Arbeiter, Ed.April 2012    Proposed Standard
RFC 6623ASCII, PDF, HTMLIANA Registry for MEDIACTRL Interactive Voice Response Control PackageE. BurgerMay 2012Updates RFC 6231Proposed Standard
RFC 6642ASCII, PDF, HTMLRTP Control Protocol (RTCP) Extension for a Third-Party Loss ReportQ. Wu, Ed., F. Xia, R. EvenJune 2012    Proposed Standard
RFC 6659ASCII, PDF, HTMLConsiderations for Deploying the Rapid Acquisition of Multicast RTP Sessions (RAMS) MethodA. BegenJuly 2012    Informational
RFC 6665ASCII, PDF, HTMLSIP-Specific Event NotificationA.B. RoachJuly 2012Obsoletes RFC 3265, Updates RFC 3261, RFC 4660, Updated by RFC 7621Proposed Standard
RFC 6679ASCII, PDF, HTMLExplicit Congestion Notification (ECN) for RTP over UDPM. Westerlund, I. Johansson, C. Perkins, P. O'Hanlon, K. CarlbergAugust 2012Errata, Updated by RFC 8311Proposed Standard
RFC 6714ASCII, PDF, HTMLConnection Establishment for Media Anchoring (CEMA) for the Message Session Relay Protocol (MSRP)C. Holmberg, S. Blau, E. BurgerAugust 2012    Proposed Standard
RFC 6716ASCII, PDF, HTMLDefinition of the Opus Audio CodecJM. Valin, K. Vos, T. TerriberrySeptember 2012Errata, Updated by RFC 8251Proposed Standard
RFC 6739ASCII, PDF, HTMLSynchronizing Service Boundaries and Elements Based on the Location-to-Service Translation (LoST) ProtocolH. Schulzrinne, H. TschofenigOctober 2012ErrataExperimental
RFC 6753ASCII, PDF, HTMLA Location Dereference Protocol Using HTTP-Enabled Location Delivery (HELD)J. Winterbottom, H. Tschofenig, H. Schulzrinne, M. ThomsonOctober 2012    Proposed Standard
RFC 6772ASCII, PDF, HTMLGeolocation Policy: A Document Format for Expressing Privacy Preferences for Location InformationH. Schulzrinne, Ed., H. Tschofenig, Ed., J. Cuellar, J. Polk, J. Morris, M. ThomsonJanuary 2013    Proposed Standard
RFC 6776ASCII, PDF, HTMLMeasurement Identity and Information Reporting Using a Source Description (SDES) Item and an RTCP Extended Report (XR) BlockA. Clark, Q. WuOctober 2012    Proposed Standard
RFC 6787ASCII, PDF, HTMLMedia Resource Control Protocol Version 2 (MRCPv2)D. Burnett, S. ShanmughamNovember 2012ErrataProposed Standard
RFC 6792ASCII, PDF, HTMLGuidelines for Use of the RTP Monitoring FrameworkQ. Wu, Ed., G. Hunt, P. ArdenNovember 2012    Informational
RFC 6794ASCII, PDF, HTMLA Framework for Session Initiation Protocol (SIP) Session PoliciesV. Hilt, G. Camarillo, J. RosenbergDecember 2012    Proposed Standard
RFC 6795ASCII, PDF, HTMLA Session Initiation Protocol (SIP) Event Package for Session-Specific PoliciesV. Hilt, G. CamarilloDecember 2012    Proposed Standard
RFC 6798ASCII, PDF, HTMLRTP Control Protocol (RTCP) Extended Report (XR) Block for Packet Delay Variation Metric ReportingA. Clark, Q. WuNovember 2012    Proposed Standard
RFC 6809ASCII, PDF, HTMLMechanism to Indicate Support of Features and Capabilities in the Session Initiation Protocol (SIP)C. Holmberg, I. Sedlacek, H. KaplanNovember 2012    Proposed Standard
RFC 6828ASCII, PDF, HTMLContent Splicing for RTP SessionsJ. XiaJanuary 2013    Informational
RFC 6843ASCII, PDF, HTMLRTP Control Protocol (RTCP) Extended Report (XR) Block for Delay Metric ReportingA. Clark, K. Gross, Q. WuJanuary 2013    Proposed Standard
RFC 6848ASCII, PDF, HTMLSpecifying Civic Address Extensions in the Presence Information Data Format Location Object (PIDF-LO)J. Winterbottom, M. Thomson, R. Barnes, B. Rosen, R. GeorgeJanuary 2013Updates RFC 4776, RFC 5222Proposed Standard
RFC 6849ASCII, PDF, HTMLAn Extension to the Session Description Protocol (SDP) and Real-time Transport Protocol (RTP) for Media LoopbackH. Kaplan, Ed., K. Hedayat, N. Venna, P. Jones, N. StrattonFebruary 2013    Proposed Standard
RFC 6871ASCII, PDF, HTMLSession Description Protocol (SDP) Media Capabilities NegotiationR. Gilman, R. Even, F. AndreasenFebruary 2013Updates RFC 5939Proposed Standard
RFC 6872ASCII, PDF, HTMLThe Common Log Format (CLF) for the Session Initiation Protocol (SIP): Framework and Information ModelV. Gurbani, Ed., E. Burger, Ed., T. Anjali, H. Abdelnur, O. FestorFebruary 2013    Proposed Standard
RFC 6873ASCII, PDF, HTMLFormat for the Session Initiation Protocol (SIP) Common Log Format (CLF)G. Salgueiro, V. Gurbani, A. B. RoachFebruary 2013Updated by RFC 7355Proposed Standard
RFC 6878ASCII, PDF, HTMLIANA Registry for the Session Initiation Protocol (SIP) "Priority" Header FieldA.B. RoachMarch 2013Errata, Updates RFC 3261Proposed Standard
RFC 6881 a.k.a. BCP 181

ASCII, PDF, HTMLBest Current Practice for Communications Services in Support of Emergency CallingB. Rosen, J. PolkMarch 2013Updated by RFC 7840, RFC 7852Best Current Practice
RFC 6884ASCII, PDF, HTMLRTP Payload Format for the Enhanced Variable Rate Narrowband-Wideband Codec (EVRC-NW)Z. FangMarch 2013    Proposed Standard
RFC 6904ASCII, PDF, HTMLEncryption of Header Extensions in the Secure Real-time Transport Protocol (SRTP)J. LennoxApril 2013Updates RFC 3711Proposed Standard
RFC 6910ASCII, PDF, HTMLCompletion of Calls for the Session Initiation Protocol (SIP)D. Worley, M. Huelsemann, R. Jesske, D. AlexeitsevApril 2013    Proposed Standard
RFC 6914ASCII, PDF, HTMLSIMPLE Made Simple: An Overview of the IETF Specifications for Instant Messaging and Presence Using the Session Initiation Protocol (SIP)J. RosenbergApril 2013    Informational
RFC 6915ASCII, PDF, HTMLFlow Identity Extension for HTTP-Enabled Location Delivery (HELD)R. BellisApril 2013Updates RFC 6155Proposed Standard
RFC 6917ASCII, PDF, HTMLMedia Resource BrokeringC. Boulton, L. Miniero, G. MunsonApril 2013    Proposed Standard
RFC 6940ASCII, PDF, HTMLREsource LOcation And Discovery (RELOAD) Base ProtocolC. Jennings, B. Lowekamp, Ed., E. Rescorla, S. Baset, H. SchulzrinneJanuary 2014ErrataProposed Standard
RFC 6958ASCII, PDF, HTMLRTP Control Protocol (RTCP) Extended Report (XR) Block for Burst/Gap Loss Metric ReportingA. Clark, S. Zhang, J. Zhao, Q. Wu, Ed.May 2013ErrataProposed Standard
RFC 6990ASCII, PDF, HTMLRTP Control Protocol (RTCP) Extended Report (XR) Block for MPEG-2 Transport Stream (TS) Program Specific Information (PSI) Independent Decodability Statistics Metrics ReportingR. Huang, Q. Wu, H. Asaeda, G. ZornAugust 2013    Proposed Standard
RFC 7002ASCII, PDF, HTMLRTP Control Protocol (RTCP) Extended Report (XR) Block for Discard Count Metric ReportingA. Clark, G. Zorn, Q. WuSeptember 2013    Proposed Standard
RFC 7003ASCII, PDF, HTMLRTP Control Protocol (RTCP) Extended Report (XR) Block for Burst/Gap Discard Metric ReportingA. Clark, R. Huang, Q. Wu, Ed.September 2013ErrataProposed Standard
RFC 7004ASCII, PDF, HTMLRTP Control Protocol (RTCP) Extended Report (XR) Blocks for Summary Statistics Metrics ReportingG. Zorn, R. Schott, Q. Wu, Ed., R. HuangSeptember 2013    Proposed Standard
RFC 7005ASCII, PDF, HTMLRTP Control Protocol (RTCP) Extended Report (XR) Block for De-Jitter Buffer Metric ReportingA. Clark, V. Singh, Q. WuSeptember 2013    Proposed Standard
RFC 7006ASCII, PDF, PDF with Images, HTMLMiscellaneous Capabilities Negotiation in the Session Description Protocol (SDP)M. Garcia-Martin, S. Veikkolainen, R. GilmanSeptember 2013ErrataProposed Standard
RFC 7007ASCII, PDF, HTMLUpdate to Remove DVI4 from the Recommended Codecs for the RTP Profile for Audio and Video Conferences with Minimal Control (RTP/AVP)T. TerriberryAugust 2013Updates RFC 3551Proposed Standard
RFC 7022ASCII, PDF, HTMLGuidelines for Choosing RTP Control Protocol (RTCP) Canonical Names (CNAMEs)A. Begen, C. Perkins, D. Wing, E. RescorlaSeptember 2013Obsoletes RFC 6222, Updates RFC 3550Proposed Standard
RFC 7035ASCII, PDF, HTMLRelative Location RepresentationM. Thomson, B. Rosen, D. Stanley, G. Bajko, A. ThomsonOctober 2013    Proposed Standard
RFC 7044ASCII, PDF, HTMLAn Extension to the Session Initiation Protocol (SIP) for Request History InformationM. Barnes, F. Audet, S. Schubert, J. van Elburg, C. HolmbergFebruary 2014Errata, Obsoletes RFC 4244Proposed Standard
RFC 7058ASCII, PDF, HTMLMedia Control Channel Framework (CFW) Call Flow ExamplesA. Amirante, T. Castaldi, L. Miniero, S P. RomanoNovember 2013    Informational
RFC 7090ASCII, PDF, HTMLPublic Safety Answering Point (PSAP) CallbackH. Schulzrinne, H. Tschofenig, C. Holmberg, M. PatelApril 2014    Proposed Standard
RFC 7092ASCII, PDF, HTMLA Taxonomy of Session Initiation Protocol (SIP) Back-to-Back User AgentsH. Kaplan, V. PascualDecember 2013    Informational
RFC 7097ASCII, PDF, HTMLRTP Control Protocol (RTCP) Extended Report (XR) for RLE of Discarded PacketsJ. Ott, V. Singh, Ed., I. CurcioJanuary 2014    Proposed Standard
RFC 7104ASCII, PDF, HTMLDuplication Grouping Semantics in the Session Description ProtocolA. Begen, Y. Cai, H. OuJanuary 2014    Proposed Standard
RFC 7105ASCII, PDF, HTMLUsing Device-Provided Location-Related Measurements in Location Configuration ProtocolsM. Thomson, J. WinterbottomJanuary 2014    Proposed Standard
RFC 7118ASCII, PDF, HTMLThe WebSocket Protocol as a Transport for the Session Initiation Protocol (SIP)I. Baz Castillo, J. Millan Villegas, V. PascualJanuary 2014    Proposed Standard
RFC 7131ASCII, PDF, HTMLSession Initiation Protocol (SIP) History-Info Header Call Flow ExamplesM. Barnes, F. Audet, S. Schubert, H. van Elburg, C. HolmbergMarch 2014    Informational
RFC 7134ASCII, PDF, HTMLThe Management Policy of the Resource Priority Header (RPH) Registry Changed to "IETF Review"B. RosenMarch 2014Updates RFC 4412Proposed Standard
RFC 7160ASCII, PDF, HTMLSupport for Multiple Clock Rates in an RTP SessionM. Petit-Huguenin, G. Zorn, Ed.April 2014Updates RFC 3550Proposed Standard
RFC 7163ASCII, PDF, HTMLURN for Country-Specific Emergency ServicesC. Holmberg, I. SedlacekMarch 2014Updates RFC 5031Proposed Standard
RFC 7164ASCII, PDF, HTMLRTP and Leap SecondsK. Gross, R. BrandenburgMarch 2014Updates RFC 3550Proposed Standard
RFC 7195ASCII, PDF, HTMLSession Description Protocol (SDP) Extension for Setting Audio and Video Media Streams over Circuit-Switched Bearers in the Public Switched Telephone Network (PSTN)M. Garcia-Martin, S. VeikkolainenMay 2014    Proposed Standard
RFC 7197ASCII, PDF, HTMLDuplication Delay Attribute in the Session Description ProtocolA. Begen, Y. Cai, H. OuApril 2014    Proposed Standard
RFC 7198ASCII, PDF, HTMLDuplicating RTP StreamsA. Begen, C. PerkinsApril 2014    Proposed Standard
RFC 7199ASCII, PDF, HTMLLocation Configuration Extensions for Policy ManagementR. Barnes, M. Thomson, J. Winterbottom, H. TschofenigApril 2014    Proposed Standard
RFC 7200ASCII, PDF, HTMLA Session Initiation Protocol (SIP) Load-Control Event PackageC. Shen, H. Schulzrinne, A. KoikeApril 2014    Proposed Standard
RFC 7201ASCII, PDF, HTMLOptions for Securing RTP SessionsM. Westerlund, C. PerkinsApril 2014    Informational
RFC 7202ASCII, PDF, HTMLSecuring the RTP Framework: Why RTP Does Not Mandate a Single Media Security SolutionC. Perkins, M. WesterlundApril 2014    Informational
RFC 7205ASCII, PDF, HTMLUse Cases for Telepresence MultistreamsA. Romanow, S. Botzko, M. Duckworth, R. Even, Ed.April 2014    Informational
RFC 7206ASCII, PDF, HTMLRequirements for an End-to-End Session Identification in IP-Based Multimedia Communication NetworksP. Jones, G. Salgueiro, J. Polk, L. Liess, H. KaplanMay 2014    Informational
RFC 7216ASCII, PDF, HTMLLocation Information Server (LIS) Discovery Using IP Addresses and Reverse DNSM. Thomson, R. BellisApril 2014    Proposed Standard
RFC 7243ASCII, PDF, HTMLRTP Control Protocol (RTCP) Extended Report (XR) Block for the Bytes Discarded MetricV. Singh, Ed., J. Ott, I. CurcioMay 2014    Proposed Standard
RFC 7244ASCII, PDF, HTMLRTP Control Protocol (RTCP) Extended Report (XR) Blocks for Synchronization Delay and Offset Metrics ReportingH. Asaeda, Q. Wu, R. HuangMay 2014    Proposed Standard
RFC 7245ASCII, PDF, HTMLAn Architecture for Media Recording Using the Session Initiation ProtocolA. Hutton, Ed., L. Portman, Ed., R. Jain, K. RehorMay 2014    Informational
RFC 7247ASCII, PDF, HTMLInterworking between the Session Initiation Protocol (SIP) and the Extensible Messaging and Presence Protocol (XMPP): Architecture, Addresses, and Error HandlingP. Saint-Andre, A. Houri, J. HildebrandMay 2014    Proposed Standard
RFC 7248ASCII, PDF, HTMLInterworking between the Session Initiation Protocol (SIP) and the Extensible Messaging and Presence Protocol (XMPP): PresenceP. Saint-Andre, A. Houri, J. HildebrandMay 2014Obsoleted by RFC 8048Proposed Standard
RFC 7261ASCII, PDF, HTMLOffer/Answer Considerations for G723 Annex A and G729 Annex BM. Perumal, P. RavindranMay 2014    Proposed Standard
RFC 7262ASCII, PDF, HTMLRequirements for Telepresence MultistreamsA. Romanow, S. Botzko, M. BarnesJune 2014    Informational
RFC 7263ASCII, PDF, HTMLAn Extension to the REsource LOcation And Discovery (RELOAD) Protocol to Support Direct Response RoutingN. Zong, X. Jiang, R. Even, Y. ZhangJune 2014    Proposed Standard
RFC 7264ASCII, PDF, HTMLAn Extension to the REsource LOcation And Discovery (RELOAD) Protocol to Support Relay Peer RoutingN. Zong, X. Jiang, R. Even, Y. ZhangJune 2014    Proposed Standard
RFC 7266ASCII, PDF, HTMLRTP Control Protocol (RTCP) Extended Report (XR) Blocks for Mean Opinion Score (MOS) Metric ReportingA. Clark, Q. Wu, R. Schott, G. ZornJune 2014    Proposed Standard
RFC 7272ASCII, PDF, HTMLInter-Destination Media Synchronization (IDMS) Using the RTP Control Protocol (RTCP)R. van Brandenburg, H. Stokking, O. van Deventer, F. Boronat, M. Montagud, K. GrossJune 2014    Proposed Standard
RFC 7273ASCII, PDF, HTMLRTP Clock Source SignallingA. Williams, K. Gross, R. van Brandenburg, H. StokkingJune 2014ErrataProposed Standard
RFC 7294ASCII, PDF, HTMLRTP Control Protocol (RTCP) Extended Report (XR) Blocks for Concealment Metrics Reporting on Audio ApplicationsA. Clark, G. Zorn, C. Bi, Q. WuJuly 2014    Proposed Standard
RFC 7310ASCII, PDF, HTMLRTP Payload Format for Standard apt-X and Enhanced apt-X CodecsJ. Lindsay, H. FoersterJuly 2014    Proposed Standard
RFC 7332ASCII, PDF, HTMLLoop Detection Mechanisms for Session Initiation Protocol (SIP) Back-to-Back User Agents (B2BUAs)H. Kaplan, V. PascualAugust 2014ErrataProposed Standard
RFC 7339ASCII, PDF, HTMLSession Initiation Protocol (SIP) Overload ControlV. Gurbani, Ed., V. Hilt, H. SchulzrinneSeptember 2014    Proposed Standard
RFC 7340ASCII, PDF, HTMLSecure Telephone Identity Problem Statement and RequirementsJ. Peterson, H. Schulzrinne, H. TschofenigSeptember 2014    Informational
RFC 7345ASCII, PDF, HTMLUDP Transport Layer (UDPTL) over Datagram Transport Layer Security (DTLS)C. Holmberg, I. Sedlacek, G. SalgueiroAugust 2014    Proposed Standard
RFC 7362ASCII, PDF, HTMLLatching: Hosted NAT Traversal (HNT) for Media in Real-Time CommunicationE. Ivov, H. Kaplan, D. WingSeptember 2014    Informational
RFC 7363ASCII, PDF, HTMLSelf-Tuning Distributed Hash Table (DHT) for REsource LOcation And Discovery (RELOAD)J. Maenpaa, G. CamarilloSeptember 2014    Proposed Standard
RFC 7374ASCII, PDF, HTMLService Discovery Usage for REsource LOcation And Discovery (RELOAD)J. Maenpaa, G. CamarilloOctober 2014    Proposed Standard
RFC 7375ASCII, PDF, HTMLSecure Telephone Identity Threat ModelJ. PetersonOctober 2014    Informational
RFC 7378ASCII, PDF, HTMLTrustworthy LocationH. Tschofenig, H. Schulzrinne, B. Aboba, Ed.December 2014    Informational
RFC 7380ASCII, PDF, HTMLRTP Control Protocol (RTCP) Extended Report (XR) Block for MPEG2 Transport Stream (TS) Program Specific Information (PSI) Decodability Statistics Metrics ReportingJ. Tong, C. Bi, Ed., R. Even, Q. Wu, Ed., R. HuangNovember 2014    Proposed Standard
RFC 7395ASCII, PDF, HTMLAn Extensible Messaging and Presence Protocol (XMPP) Subprotocol for WebSocketL. Stout, Ed., J. Moffitt, E. CestariOctober 2014    Proposed Standard
RFC 7403ASCII, PDF, HTMLA Media-Based Traceroute Function for the Session Initiation Protocol (SIP)H. KaplanNovember 2014    Proposed Standard
RFC 7406ASCII, PDF, HTMLExtensions to the Emergency Services Architecture for Dealing With Unauthenticated and Unauthorized DevicesH. Schulzrinne, S. McCann, G. Bajko, H. Tschofenig, D. KroeselbergDecember 2014    Informational
RFC 7415ASCII, PDF, HTMLSession Initiation Protocol (SIP) Rate ControlE. Noel, P. WilliamsFebruary 2015    Proposed Standard
RFC 7433ASCII, PDF, HTMLA Mechanism for Transporting User-to-User Call Control Information in SIPA. Johnston, J. RaffertyJanuary 2015    Proposed Standard
RFC 7434ASCII, PDF, HTMLInterworking ISDN Call Control User Information with SIPK. Drage, Ed., A. JohnstonJanuary 2015ErrataProposed Standard
RFC 7459ASCII, PDF, HTMLRepresentation of Uncertainty and Confidence in the Presence Information Data Format Location Object (PIDF-LO)M. Thomson, J. WinterbottomFebruary 2015Updates RFC 3693, RFC 4119, RFC 5491Proposed Standard
RFC 7462ASCII, PDF, HTMLURNs for the Alert-Info Header Field of the Session Initiation Protocol (SIP)L. Liess, Ed., R. Jesske, A. Johnston, D. Worley, P. KyzivatMarch 2015Updates RFC 3261Proposed Standard
RFC 7463ASCII, PDF, HTMLShared Appearances of a Session Initiation Protocol (SIP) Address of Record (AOR)A. Johnston, Ed., M. Soroushnejad, Ed., V. VenkataramananMarch 2015Errata, Updates RFC 3261, RFC 4235Proposed Standard
RFC 7478ASCII, PDF, HTMLWeb Real-Time Communication Use Cases and RequirementsC. Holmberg, S. Hakansson, G. ErikssonMarch 2015    Informational
RFC 7509ASCII, PDF, HTMLRTP Control Protocol (RTCP) Extended Report (XR) for Post-Repair Loss Count MetricsR. Huang, V. SinghMay 2015    Proposed Standard
RFC 7657ASCII, PDF, HTMLDifferentiated Services (Diffserv) and Real-Time CommunicationD. Black, Ed., P. JonesNovember 2015    Informational
RFC 7701ASCII, PDF, HTMLMulti-party Chat Using the Message Session Relay Protocol (MSRP)A. Niemi, M. Garcia-Martin, G. SandbakkenDecember 2015    Proposed Standard