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NumberFilesTitleAuthorsDateMore InfoStatus
RFC 7701ASCII, PDFMulti-party Chat Using the Message Session Relay Protocol (MSRP)A. Niemi, M. Garcia-Martin, G. SandbakkenDecember 2015    Proposed Standard
RFC 7657ASCII, PDFDifferentiated Services (Diffserv) and Real-Time CommunicationD. Black, Ed., P. JonesNovember 2015    Informational
RFC 7509ASCII, PDFRTP Control Protocol (RTCP) Extended Report (XR) for Post-Repair Loss Count MetricsR. Huang, V. SinghMay 2015    Proposed Standard
RFC 7463ASCII, PDFShared Appearances of a Session Initiation Protocol (SIP) Address of Record (AOR)A. Johnston, Ed., M. Soroushnejad, Ed., V. VenkataramananMarch 2015Updates RFC 3261, RFC 4235, ErrataProposed Standard
RFC 7462ASCII, PDFURNs 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 7478ASCII, PDFWeb Real-Time Communication Use Cases and RequirementsC. Holmberg, S. Hakansson, G. ErikssonMarch 2015    Informational
RFC 7459ASCII, PDFRepresentation 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 7415ASCII, PDFSession Initiation Protocol (SIP) Rate ControlE. Noel, P. WilliamsFebruary 2015    Proposed Standard
RFC 7433ASCII, PDFA Mechanism for Transporting User-to-User Call Control Information in SIPA. Johnston, J. RaffertyJanuary 2015    Proposed Standard
RFC 7434ASCII, PDFInterworking ISDN Call Control User Information with SIPK. Drage, Ed., A. JohnstonJanuary 2015ErrataProposed Standard
RFC 7406ASCII, PDFExtensions to the Emergency Services Architecture for Dealing With Unauthenticated and Unauthorized DevicesH. Schulzrinne, S. McCann, G. Bajko, H. Tschofenig, D. KroeselbergDecember 2014    Informational
RFC 7378ASCII, PDFTrustworthy LocationH. Tschofenig, H. Schulzrinne, B. Aboba, Ed.December 2014    Informational
RFC 7403ASCII, PDFA Media-Based Traceroute Function for the Session Initiation Protocol (SIP)H. KaplanNovember 2014    Proposed Standard
RFC 7380ASCII, PDFRTP 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, PDFAn Extensible Messaging and Presence Protocol (XMPP) Subprotocol for WebSocketL. Stout, Ed., J. Moffitt, E. CestariOctober 2014    Proposed Standard
RFC 7374ASCII, PDFService Discovery Usage for REsource LOcation And Discovery (RELOAD)J. Maenpaa, G. CamarilloOctober 2014    Proposed Standard
RFC 7375ASCII, PDFSecure Telephone Identity Threat ModelJ. PetersonOctober 2014    Informational
RFC 7340ASCII, PDFSecure Telephone Identity Problem Statement and RequirementsJ. Peterson, H. Schulzrinne, H. TschofenigSeptember 2014    Informational
RFC 7339ASCII, PDFSession Initiation Protocol (SIP) Overload ControlV. Gurbani, Ed., V. Hilt, H. SchulzrinneSeptember 2014    Proposed Standard
RFC 7362ASCII, PDFLatching: Hosted NAT Traversal (HNT) for Media in Real-Time CommunicationE. Ivov, H. Kaplan, D. WingSeptember 2014    Informational
RFC 7363ASCII, PDFSelf-Tuning Distributed Hash Table (DHT) for REsource LOcation And Discovery (RELOAD)J. Maenpaa, G. CamarilloSeptember 2014    Proposed Standard
RFC 7345ASCII, PDFUDP Transport Layer (UDPTL) over Datagram Transport Layer Security (DTLS)C. Holmberg, I. Sedlacek, G. SalgueiroAugust 2014    Proposed Standard
RFC 7332ASCII, PDFLoop Detection Mechanisms for Session Initiation Protocol (SIP) Back-to-Back User Agents (B2BUAs)H. Kaplan, V. PascualAugust 2014ErrataProposed Standard
RFC 7310ASCII, PDFRTP Payload Format for Standard apt-X and Enhanced apt-X CodecsJ. Lindsay, H. FoersterJuly 2014    Proposed Standard
RFC 7294ASCII, PDFRTP 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 7272ASCII, PDFInter-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, PDFRTP Clock Source SignallingA. Williams, K. Gross, R. van Brandenburg, H. StokkingJune 2014ErrataProposed Standard
RFC 7266ASCII, PDFRTP 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 7264ASCII, PDFAn 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 7263ASCII, PDFAn 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 7262ASCII, PDFRequirements for Telepresence MultistreamsA. Romanow, S. Botzko, M. BarnesJune 2014    Informational
RFC 7261ASCII, PDFOffer/Answer Considerations for G723 Annex A and G729 Annex BM. Perumal, P. RavindranMay 2014    Proposed Standard
RFC 7245ASCII, PDFAn Architecture for Media Recording Using the Session Initiation ProtocolA. Hutton, Ed., L. Portman, Ed., R. Jain, K. RehorMay 2014    Informational
RFC 7248ASCII, PDFInterworking 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 7247ASCII, PDFInterworking 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 7244ASCII, PDFRTP Control Protocol (RTCP) Extended Report (XR) Blocks for Synchronization Delay and Offset Metrics ReportingH. Asaeda, Q. Wu, R. HuangMay 2014    Proposed Standard
RFC 7243ASCII, PDFRTP Control Protocol (RTCP) Extended Report (XR) Block for the Bytes Discarded MetricV. Singh, Ed., J. Ott, I. CurcioMay 2014    Proposed Standard
RFC 7206ASCII, PDFRequirements 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 7195ASCII, PDFSession 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 7200ASCII, PDFA Session Initiation Protocol (SIP) Load-Control Event PackageC. Shen, H. Schulzrinne, A. KoikeApril 2014    Proposed Standard
RFC 7216ASCII, PDFLocation Information Server (LIS) Discovery Using IP Addresses and Reverse DNSM. Thomson, R. BellisApril 2014    Proposed Standard
RFC 7199ASCII, PDFLocation Configuration Extensions for Policy ManagementR. Barnes, M. Thomson, J. Winterbottom, H. TschofenigApril 2014    Proposed Standard
RFC 7197ASCII, PDFDuplication Delay Attribute in the Session Description ProtocolA. Begen, Y. Cai, H. OuApril 2014    Proposed Standard
RFC 7198ASCII, PDFDuplicating RTP StreamsA. Begen, C. PerkinsApril 2014    Proposed Standard
RFC 7090ASCII, PDFPublic Safety Answering Point (PSAP) CallbackH. Schulzrinne, H. Tschofenig, C. Holmberg, M. PatelApril 2014    Proposed Standard
RFC 7205ASCII, PDFUse Cases for Telepresence MultistreamsA. Romanow, S. Botzko, M. Duckworth, R. Even, Ed.April 2014    Informational
RFC 7202ASCII, PDFSecuring the RTP Framework: Why RTP Does Not Mandate a Single Media Security SolutionC. Perkins, M. WesterlundApril 2014    Informational
RFC 7201ASCII, PDFOptions for Securing RTP SessionsM. Westerlund, C. PerkinsApril 2014    Informational
RFC 7160ASCII, PDFSupport for Multiple Clock Rates in an RTP SessionM. Petit-Huguenin, G. Zorn, Ed.April 2014Updates RFC 3550Proposed Standard
RFC 7164ASCII, PDFRTP and Leap SecondsK. Gross, R. BrandenburgMarch 2014Updates RFC 3550Proposed Standard
RFC 7163ASCII, PDFURN for Country-Specific Emergency ServicesC. Holmberg, I. SedlacekMarch 2014Updates RFC 5031Proposed Standard
RFC 7131ASCII, PDFSession Initiation Protocol (SIP) History-Info Header Call Flow ExamplesM. Barnes, F. Audet, S. Schubert, H. van Elburg, C. HolmbergMarch 2014    Informational
RFC 7134ASCII, PDFThe Management Policy of the Resource Priority Header (RPH) Registry Changed to "IETF Review"B. RosenMarch 2014Updates RFC 4412Proposed Standard
RFC 7044ASCII, PDFAn Extension to the Session Initiation Protocol (SIP) for Request History InformationM. Barnes, F. Audet, S. Schubert, J. van Elburg, C. HolmbergFebruary 2014Obsoletes RFC 4244, ErrataProposed Standard
RFC 7118ASCII, PDFThe WebSocket Protocol as a Transport for the Session Initiation Protocol (SIP)I. Baz Castillo, J. Millan Villegas, V. PascualJanuary 2014    Proposed Standard
RFC 7104ASCII, PDFDuplication Grouping Semantics in the Session Description ProtocolA. Begen, Y. Cai, H. OuJanuary 2014    Proposed Standard
RFC 6940ASCII, PDFREsource LOcation And Discovery (RELOAD) Base ProtocolC. Jennings, B. Lowekamp, Ed., E. Rescorla, S. Baset, H. SchulzrinneJanuary 2014ErrataProposed Standard
RFC 7105ASCII, PDFUsing Device-Provided Location-Related Measurements in Location Configuration ProtocolsM. Thomson, J. WinterbottomJanuary 2014    Proposed Standard
RFC 7097ASCII, PDFRTP Control Protocol (RTCP) Extended Report (XR) for RLE of Discarded PacketsJ. Ott, V. Singh, Ed., I. CurcioJanuary 2014    Proposed Standard
RFC 7092ASCII, PDFA Taxonomy of Session Initiation Protocol (SIP) Back-to-Back User AgentsH. Kaplan, V. PascualDecember 2013    Informational
RFC 7058ASCII, PDFMedia Control Channel Framework (CFW) Call Flow ExamplesA. Amirante, T. Castaldi, L. Miniero, S P. RomanoNovember 2013    Informational
RFC 7035ASCII, PDFRelative Location RepresentationM. Thomson, B. Rosen, D. Stanley, G. Bajko, A. ThomsonOctober 2013    Proposed Standard
RFC 7006ASCII, PDF, PDF with ImagesMiscellaneous Capabilities Negotiation in the Session Description Protocol (SDP)M. Garcia-Martin, S. Veikkolainen, R. GilmanSeptember 2013ErrataProposed Standard
RFC 7004ASCII, PDFRTP Control Protocol (RTCP) Extended Report (XR) Blocks for Summary Statistics Metrics ReportingG. Zorn, R. Schott, Q. Wu, Ed., R. HuangSeptember 2013    Proposed Standard
RFC 7003ASCII, PDFRTP Control Protocol (RTCP) Extended Report (XR) Block for Burst/Gap Discard Metric ReportingA. Clark, R. Huang, Q. Wu, Ed.September 2013ErrataProposed Standard
RFC 7005ASCII, PDFRTP Control Protocol (RTCP) Extended Report (XR) Block for De-Jitter Buffer Metric ReportingA. Clark, V. Singh, Q. WuSeptember 2013    Proposed Standard
RFC 7002ASCII, PDFRTP Control Protocol (RTCP) Extended Report (XR) Block for Discard Count Metric ReportingA. Clark, G. Zorn, Q. WuSeptember 2013    Proposed Standard
RFC 7022ASCII, PDFGuidelines 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 7007ASCII, PDFUpdate 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 6990ASCII, PDFRTP 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 6958ASCII, PDFRTP 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 6914ASCII, PDFSIMPLE Made Simple: An Overview of the IETF Specifications for Instant Messaging and Presence Using the Session Initiation Protocol (SIP)J. RosenbergApril 2013    Informational
RFC 6904ASCII, PDFEncryption of Header Extensions in the Secure Real-time Transport Protocol (SRTP)J. LennoxApril 2013Updates RFC 3711Proposed Standard
RFC 6910ASCII, PDFCompletion of Calls for the Session Initiation Protocol (SIP)D. Worley, M. Huelsemann, R. Jesske, D. AlexeitsevApril 2013    Proposed Standard
RFC 6917ASCII, PDFMedia Resource BrokeringC. Boulton, L. Miniero, G. MunsonApril 2013    Proposed Standard
RFC 6915ASCII, PDFFlow Identity Extension for HTTP-Enabled Location Delivery (HELD)R. BellisApril 2013Updates RFC 6155Proposed Standard
RFC 6884ASCII, PDFRTP Payload Format for the Enhanced Variable Rate Narrowband-Wideband Codec (EVRC-NW)Z. FangMarch 2013    Proposed Standard
RFC 6881 a.k.a. BCP 181

ASCII, PDFBest Current Practice for Communications Services in Support of Emergency CallingB. Rosen, J. PolkMarch 2013Updated by RFC 7840, RFC 7852Best Current Practice
RFC 6878ASCII, PDFIANA Registry for the Session Initiation Protocol (SIP) "Priority" Header FieldA.B. RoachMarch 2013Updates RFC 3261, ErrataProposed Standard
RFC 6871ASCII, PDFSession Description Protocol (SDP) Media Capabilities NegotiationR. Gilman, R. Even, F. AndreasenFebruary 2013Updates RFC 5939Proposed Standard
RFC 6849ASCII, PDFAn 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 6873ASCII, PDFFormat for the Session Initiation Protocol (SIP) Common Log Format (CLF)G. Salgueiro, V. Gurbani, A. B. RoachFebruary 2013Updated by RFC 7355Proposed Standard
RFC 6872ASCII, PDFThe 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 6848ASCII, PDFSpecifying 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 6843ASCII, PDFRTP Control Protocol (RTCP) Extended Report (XR) Block for Delay Metric ReportingA. Clark, K. Gross, Q. WuJanuary 2013    Proposed Standard
RFC 6772ASCII, PDFGeolocation 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 6828ASCII, PDFContent Splicing for RTP SessionsJ. XiaJanuary 2013    Informational
RFC 6795ASCII, PDFA Session Initiation Protocol (SIP) Event Package for Session-Specific PoliciesV. Hilt, G. CamarilloDecember 2012    Proposed Standard
RFC 6794ASCII, PDFA Framework for Session Initiation Protocol (SIP) Session PoliciesV. Hilt, G. Camarillo, J. RosenbergDecember 2012    Proposed Standard
RFC 6809ASCII, PDFMechanism to Indicate Support of Features and Capabilities in the Session Initiation Protocol (SIP)C. Holmberg, I. Sedlacek, H. KaplanNovember 2012    Proposed Standard
RFC 6792ASCII, PDFGuidelines for Use of the RTP Monitoring FrameworkQ. Wu, Ed., G. Hunt, P. ArdenNovember 2012    Informational
RFC 6798ASCII, PDFRTP Control Protocol (RTCP) Extended Report (XR) Block for Packet Delay Variation Metric ReportingA. Clark, Q. WuNovember 2012    Proposed Standard
RFC 6787ASCII, PDFMedia Resource Control Protocol Version 2 (MRCPv2)D. Burnett, S. ShanmughamNovember 2012ErrataProposed Standard
RFC 6739ASCII, PDFSynchronizing Service Boundaries and Elements Based on the Location-to-Service Translation (LoST) ProtocolH. Schulzrinne, H. TschofenigOctober 2012ErrataExperimental
RFC 6753ASCII, PDFA Location Dereference Protocol Using HTTP-Enabled Location Delivery (HELD)J. Winterbottom, H. Tschofenig, H. Schulzrinne, M. ThomsonOctober 2012    Proposed Standard
RFC 6776ASCII, PDFMeasurement Identity and Information Reporting Using a Source Description (SDES) Item and an RTCP Extended Report (XR) BlockA. Clark, Q. WuOctober 2012    Proposed Standard
RFC 6716ASCII, PDFDefinition of the Opus Audio CodecJM. Valin, K. Vos, T. TerriberrySeptember 2012Updated by RFC 8251, ErrataProposed Standard
RFC 6714ASCII, PDFConnection Establishment for Media Anchoring (CEMA) for the Message Session Relay Protocol (MSRP)C. Holmberg, S. Blau, E. BurgerAugust 2012    Proposed Standard
RFC 6679ASCII, PDFExplicit Congestion Notification (ECN) for RTP over UDPM. Westerlund, I. Johansson, C. Perkins, P. O'Hanlon, K. CarlbergAugust 2012ErrataProposed Standard
RFC 6665ASCII, PDFSIP-Specific Event NotificationA.B. RoachJuly 2012Obsoletes RFC 3265, Updates RFC 3261, RFC 4660, Updated by RFC 7621Proposed Standard
RFC 6659ASCII, PDFConsiderations for Deploying the Rapid Acquisition of Multicast RTP Sessions (RAMS) MethodA. BegenJuly 2012    Informational
RFC 6642ASCII, PDFRTP Control Protocol (RTCP) Extension for a Third-Party Loss ReportQ. Wu, Ed., F. Xia, R. EvenJune 2012    Proposed Standard
RFC 6623ASCII, PDFIANA Registry for MEDIACTRL Interactive Voice Response Control PackageE. BurgerMay 2012Updates RFC 6231Proposed Standard
RFC 6597ASCII, PDFRTP 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 6567ASCII, PDFProblem Statement and Requirements for Transporting User-to-User Call Control Information in SIPA. Johnston, L. LiessApril 2012    Informational
RFC 6569ASCII, PDFGuidelines for Development of an Audio Codec within the IETFJM. Valin, S. Borilin, K. Vos, C. Montgomery, R. ChenMarch 2012    Informational
RFC 6502ASCII, PDFConference Event Package Data Format Extension for Centralized Conferencing (XCON)G. Camarillo, S. Srinivasan, R. Even, J. UrpalainenMarch 2012    Proposed Standard
RFC 6503ASCII, PDFCentralized Conferencing Manipulation ProtocolM. Barnes, C. Boulton, S. Romano, H. SchulzrinneMarch 2012ErrataProposed Standard
RFC 6504ASCII, PDFCentralized Conferencing Manipulation Protocol (CCMP) Call Flow ExamplesM. Barnes, L. Miniero, R. Presta, S P. RomanoMarch 2012    Informational
RFC 6501ASCII, PDFConference Information Data Model for Centralized Conferencing (XCON)O. Novo, G. Camarillo, D. Morgan, J. UrpalainenMarch 2012    Proposed Standard
RFC 6505ASCII, PDFA Mixer Control Package for the Media Control Channel FrameworkS. McGlashan, T. Melanchuk, C. BoultonMarch 2012ErrataProposed Standard
RFC 6544ASCII, PDFTCP Candidates with Interactive Connectivity Establishment (ICE)J. Rosenberg, A. Keranen, B. B. Lowekamp, A. B. RoachMarch 2012ErrataProposed Standard
RFC 6562ASCII, PDFGuidelines for the Use of Variable Bit Rate Audio with Secure RTPC. Perkins, JM. ValinMarch 2012    Proposed Standard
RFC 6447ASCII, PDFFiltering Location Notifications in the Session Initiation Protocol (SIP)R. Mahy, B. Rosen, H. TschofenigJanuary 2012    Proposed Standard
RFC 6446ASCII, PDFSession Initiation Protocol (SIP) Event Notification Extension for Notification Rate ControlA. Niemi, K. Kiss, S. LoretoJanuary 2012Updates RFC 3265Proposed Standard
RFC 6461ASCII, PDFData for Reachability of Inter-/Intra-NetworK SIP (DRINKS) Use Cases and Protocol RequirementsS. Channabasappa, Ed.January 2012    Informational
RFC 6444ASCII, PDFLocation Hiding: Problem Statement and RequirementsH. Schulzrinne, L. Liess, H. Tschofenig, B. Stark, A. KuettJanuary 2012    Informational
RFC 6469ASCII, PDFRTP Payload Format for DV (IEC 61834) VideoK. Kobayashi, K. Mishima, S. Casner, C. BormannDecember 2011Obsoletes RFC 3189Proposed Standard
RFC 6443ASCII, PDFFramework for Emergency Calling Using Internet MultimediaB. Rosen, H. Schulzrinne, J. Polk, A. NewtonDecember 2011Updated by RFC 7852Informational
RFC 6464ASCII, PDFA 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, PDFA 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 6442ASCII, PDFLocation Conveyance for the Session Initiation ProtocolJ. Polk, B. Rosen, J. PetersonDecember 2011Updated by RFC 8262, ErrataProposed Standard
RFC 6405ASCII, PDFVoice over IP (VoIP) SIP Peering Use CasesA. Uzelac, Ed., Y. Lee, Ed.November 2011    Informational
RFC 6406ASCII, PDFSession PEERing for Multimedia INTerconnect (SPEERMINT) ArchitectureD. Malas, Ed., J. Livingood, Ed.November 2011    Informational
RFC 6404ASCII, PDFSession PEERing for Multimedia INTerconnect (SPEERMINT) Security Threats and Suggested CountermeasuresJ. Seedorf, S. Niccolini, E. Chen, H. ScholzNovember 2011    Informational
RFC 6416ASCII, PDFRTP Payload Format for MPEG-4 Audio/Visual StreamsM. Schmidt, F. de Bont, S. Doehla, J. KimOctober 2011Obsoletes RFC 3016Proposed Standard
RFC 6366ASCII, PDFRequirements for an Internet Audio CodecJ. Valin, K. VosAugust 2011    Informational
RFC 6357ASCII, PDFDesign Considerations for Session Initiation Protocol (SIP) Overload ControlV. Hilt, E. Noel, C. Shen, A. AbdelalAugust 2011    Informational
RFC 6354ASCII, PDFForward-Shifted RTP Redundancy Payload SupportQ. XieAugust 2011Updates RFC 2198, RFC 4102Proposed Standard
RFC 6341ASCII, PDFUse Cases and Requirements for SIP-Based Media Recording (SIPREC)K. Rehor, Ed., L. Portman, Ed., A. Hutton, R. JainAugust 2011    Informational
RFC 6262ASCII, PDFRTP Payload Format for IP-MR Speech CodecS. IkoninAugust 2011    Proposed Standard
RFC 6225ASCII, PDFDynamic Host Configuration Protocol Options for Coordinate-Based Location Configuration InformationJ. Polk, M. Linsner, M. Thomson, B. Aboba, Ed.July 2011Obsoletes RFC 3825, ErrataProposed Standard
RFC 6332ASCII, PDFMulticast Acquisition Report Block Type for RTP Control Protocol (RTCP) Extended Reports (XRs)A. Begen, E. FriedrichJuly 2011    Proposed Standard
RFC 6280 a.k.a. BCP 160

ASCII, PDFAn 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 6336ASCII, PDFIANA Registry for Interactive Connectivity Establishment (ICE) OptionsM. Westerlund, C. PerkinsJuly 2011Updates RFC 5245Proposed Standard
RFC 6315ASCII, PDFIANA Registration for Enumservice 'iax'E. Guy, K. DarilionJuly 2011    Informational
RFC 6285ASCII, PDFUnicast-Based Rapid Acquisition of Multicast RTP SessionsB. Ver Steeg, A. Begen, T. Van Caenegem, Z. VaxJune 2011    Proposed Standard
RFC 6271ASCII, PDFRequirements for SIP-Based Session PeeringJ-F. MuleJune 2011    Informational
RFC 6284ASCII, PDFPort Mapping between Unicast and Multicast RTP SessionsA. Begen, D. Wing, T. Van CaenegemJune 2011    Proposed Standard
RFC 6263ASCII, PDFApplication Mechanism for Keeping Alive the NAT Mappings Associated with RTP / RTP Control Protocol (RTCP) FlowsX. Marjou, A. SollaudJune 2011    Proposed Standard
RFC 6295ASCII, PDFRTP Payload Format for MIDIJ. Lazzaro, J. WawrzynekJune 2011Obsoletes RFC 4695Proposed Standard
RFC 6236ASCII, PDFNegotiation of Generic Image Attributes in the Session Description Protocol (SDP)I. Johansson, K. JungMay 2011ErrataProposed Standard
RFC 6231ASCII, PDFAn Interactive Voice Response (IVR) Control Package for the Media Control Channel FrameworkS. McGlashan, T. Melanchuk, C. BoultonMay 2011Updated by RFC 6623, ErrataProposed Standard
RFC 6230ASCII, PDFMedia Control Channel FrameworkC. Boulton, T. Melanchuk, S. McGlashanMay 2011    Proposed Standard
RFC 6185ASCII, PDFRTP Payload Format for H.264 Reduced-Complexity Decoding Operation (RCDO) VideoT. Kristensen, P. LuthiMay 2011    Proposed Standard
RFC 6228ASCII, PDFSession Initiation Protocol (SIP) Response Code for Indication of Terminated DialogC. HolmbergMay 2011ErrataProposed Standard
RFC 6190ASCII, PDFRTP Payload Format for Scalable Video CodingS. Wenger, Y.-K. Wang, T. Schierl, A. EleftheriadisMay 2011ErrataProposed Standard
RFC 6184ASCII, PDFRTP Payload Format for H.264 VideoY.-K. Wang, R. Even, T. Kristensen, R. JesupMay 2011Obsoletes RFC 3984, ErrataProposed Standard
RFC 6157ASCII, PDFIPv6 Transition in the Session Initiation Protocol (SIP)G. Camarillo, K. El Malki, V. GurbaniApril 2011Updates RFC 3264, ErrataProposed Standard
RFC 6197ASCII, PDFLocation-to-Service Translation (LoST) Service List Boundary ExtensionK. WolfApril 2011    Experimental
RFC 6222ASCII, PDFGuidelines 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, PDFIndication of Support for Keep-AliveC. HolmbergApril 2011    Proposed Standard
RFC 6216ASCII, PDFExample Call Flows Using Session Initiation Protocol (SIP) Security MechanismsC. Jennings, K. Ono, R. Sparks, B. Hibbard, Ed.April 2011    Informational
RFC 6120ASCII, PDFExtensible Messaging and Presence Protocol (XMPP): CoreP. Saint-AndreMarch 2011Obsoletes RFC 3920, Updated by RFC 7590, ErrataProposed Standard
RFC 6122ASCII, PDFExtensible Messaging and Presence Protocol (XMPP): Address FormatP. Saint-AndreMarch 2011Obsoleted by RFC 7622, Updates RFC 3920, ErrataProposed Standard
RFC 6121ASCII, PDFExtensible Messaging and Presence Protocol (XMPP): Instant Messaging and PresenceP. Saint-AndreMarch 2011Obsoletes RFC 3921, ErrataProposed Standard
RFC 6188ASCII, PDFThe Use of AES-192 and AES-256 in Secure RTPD. McGrewMarch 2011    Proposed Standard
RFC 6155ASCII, PDFUse of Device Identity in HTTP-Enabled Location Delivery (HELD)J. Winterbottom, M. Thomson, H. Tschofenig, R. BarnesMarch 2011Updated by RFC 6915Proposed Standard
RFC 6116ASCII, PDFThe 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 6118ASCII, PDFUpdate 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 6117ASCII, PDFIANA Registration of Enumservices: Guide, Template, and IANA ConsiderationsB. Hoeneisen, A. Mayrhofer, J. LivingoodMarch 2011Obsoletes RFC 3761Proposed Standard
RFC 6080ASCII, PDFA Framework for Session Initiation Protocol User Agent Profile DeliveryD. Petrie, S. Channabasappa, Ed.March 2011    Proposed Standard
RFC 6141ASCII, PDFRe-INVITE and Target-Refresh Request Handling in the Session Initiation Protocol (SIP)G. Camarillo, Ed., C. Holmberg, Y. GaoMarch 2011Updates RFC 3261Proposed Standard
RFC 6140ASCII, PDFRegistration for Multiple Phone Numbers in the Session Initiation Protocol (SIP)A.B. RoachMarch 2011Updates RFC 3680, ErrataProposed Standard
RFC 6135ASCII, PDFAn Alternative Connection Model for the Message Session Relay Protocol (MSRP)C. Holmberg, S. BlauFebruary 2011    Proposed Standard
RFC 6128ASCII, PDFRTP Control Protocol (RTCP) Port for Source-Specific Multicast (SSM) SessionsA. BegenFebruary 2011Updates RFC 5760Proposed Standard
RFC 6072ASCII, PDFCertificate Management Service for the Session Initiation Protocol (SIP)C. Jennings, J. Fischl, Ed.February 2011ErrataProposed Standard
RFC 6086ASCII, PDFSession Initiation Protocol (SIP) INFO Method and Package FrameworkC. Holmberg, E. Burger, H. KaplanJanuary 2011Obsoletes RFC 2976, ErrataProposed Standard
RFC 6035ASCII, PDFSession Initiation Protocol Event Package for Voice Quality ReportingA. Pendleton, A. Clark, A. Johnston, H. SinnreichNovember 2010ErrataProposed Standard
RFC 6051ASCII, PDFRapid Synchronisation of RTP FlowsC. Perkins, T. SchierlNovember 2010Updates RFC 3550Proposed Standard
RFC 5993ASCII, PDFRTP 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, PDFCorrect Transaction Handling for 2xx Responses to Session Initiation Protocol (SIP) INVITE RequestsR. Sparks, T. ZourzouvillysSeptember 2010Updates RFC 3261, ErrataProposed Standard
RFC 5956ASCII, PDFForward Error Correction Grouping Semantics in the Session Description ProtocolA. BegenSeptember 2010Obsoletes RFC 4756Proposed Standard
RFC 5968ASCII, PDFGuidelines for Extending the RTP Control Protocol (RTCP)J. Ott, C. PerkinsSeptember 2010    Informational
RFC 5939ASCII, PDFSession Description Protocol (SDP) Capability NegotiationF. AndreasenSeptember 2010Updated by RFC 6871, ErrataProposed Standard
RFC 5947ASCII, PDFRequirements for Multiple Address of Record (AOR) Reachability Information in the Session Initiation Protocol (SIP)J. Elwell, H. KaplanSeptember 2010    Informational
RFC 5985ASCII, PDFHTTP-Enabled Location Delivery (HELD)M. Barnes, Ed.September 2010Updated by RFC 7840Proposed Standard
RFC 5986ASCII, PDFDiscovering the Local Location Information Server (LIS)M. Thomson, J. WinterbottomSeptember 2010ErrataProposed Standard
RFC 5669ASCII, PDFThe 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 5964ASCII, PDFSpecifying Holes in Location-to-Service Translation (LoST) Service BoundariesJ. Winterbottom, M. ThomsonAugust 2010    Proposed Standard
RFC 5954ASCII, PDFEssential Correction for IPv6 ABNF and URI Comparison in RFC 3261V. Gurbani, Ed., B. Carpenter, Ed., B. Tate, Ed.August 2010Updates RFC 3261, ErrataProposed Standard
RFC 5898ASCII, PDFConnectivity Preconditions for Session Description Protocol (SDP) Media StreamsF. Andreasen, G. Camarillo, D. Oran, D. WingJuly 2010    Proposed Standard
RFC 5923ASCII, PDFConnection Reuse in the Session Initiation Protocol (SIP)V. Gurbani, Ed., R. Mahy, B. TateJune 2010ErrataProposed Standard
RFC 5924ASCII, PDFExtended Key Usage (EKU) for Session Initiation Protocol (SIP) X.509 CertificatesS. Lawrence, V. GurbaniJune 2010    Experimental
RFC 5922ASCII, PDFDomain Certificates in the Session Initiation Protocol (SIP)V. Gurbani, S. Lawrence, A. JeffreyJune 2010Updates RFC 3261Proposed Standard
RFC 5888ASCII, PDFThe Session Description Protocol (SDP) Grouping FrameworkG. Camarillo, H. SchulzrinneJune 2010Obsoletes RFC 3388, ErrataProposed Standard
RFC 5897ASCII, PDFIdentification of Communications Services in the Session Initiation Protocol (SIP)J. RosenbergJune 2010    Informational
RFC 5870ASCII, PDFA Uniform Resource Identifier for Geographic Locations ('geo' URI)A. Mayrhofer, C. SpanringJune 2010    Proposed Standard
RFC 5850ASCII, PDFA 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 5875ASCII, PDFAn Extensible Markup Language (XML) Configuration Access Protocol (XCAP) Diff Event PackageJ. Urpalainen, D. Willis, Ed.May 2010    Proposed Standard
RFC 5874ASCII, PDFAn Extensible Markup Language (XML) Document Format for Indicating a Change in XML Configuration Access Protocol (XCAP) ResourcesJ. Rosenberg, J. UrpalainenMay 2010    Proposed Standard
RFC 5764ASCII, PDFDatagram Transport Layer Security (DTLS) Extension to Establish Keys for the Secure Real-time Transport Protocol (SRTP)D. McGrew, E. RescorlaMay 2010Updated by RFC 7983, ErrataProposed Standard
RFC 5808ASCII, PDFRequirements for a Location-by-Reference MechanismR. Marshall, Ed.May 2010    Informational
RFC 5763ASCII, PDFFramework 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 5839ASCII, PDFAn Extension to Session Initiation Protocol (SIP) Events for Conditional Event NotificationA. Niemi, D. Willis, Ed.May 2010    Proposed Standard
RFC 5761ASCII, PDFMultiplexing RTP Data and Control Packets on a Single PortC. Perkins, M. WesterlundApril 2010Updates RFC 3550, RFC 3551, Updated by RFC 8035, ErrataProposed Standard
RFC 5245ASCII, PDFInteractive Connectivity Establishment (ICE): A Protocol for Network Address Translator (NAT) Traversal for Offer/Answer ProtocolsJ. RosenbergApril 2010Obsoletes RFC 4091, RFC 4092, Updated by RFC 6336, ErrataProposed Standard
RFC 5853ASCII, PDFRequirements from Session Initiation Protocol (SIP) Session Border Control (SBC) DeploymentsJ. Hautakorpi, Ed., G. Camarillo, R. Penfield, A. Hawrylyshen, M. BhatiaApril 2010    Informational
RFC 5768ASCII, PDFIndicating Support for Interactive Connectivity Establishment (ICE) in the Session Initiation Protocol (SIP)J. RosenbergApril 2010    Proposed Standard
RFC 5767ASCII, PDFUser-Agent-Driven Privacy Mechanism for SIPM. Munakata, S. Schubert, T. OhbaApril 2010    Informational
RFC 5876ASCII, PDFUpdates to Asserted Identity in the Session Initiation Protocol (SIP)J. ElwellApril 2010Updates RFC 3325Informational
RFC 5687ASCII, PDFGEOPRIV Layer 7 Location Configuration Protocol: Problem Statement and RequirementsH. Tschofenig, H. SchulzrinneMarch 2010    Informational
RFC 5774 a.k.a. BCP 154

ASCII, PDFConsiderations for Civic Addresses in the Presence Information Data Format Location Object (PIDF-LO): Guidelines and IANA Registry DefinitionK. Wolf, A. MayrhoferMarch 2010Updates RFC 4776, ErrataBest Current Practice
RFC 5760ASCII, PDFRTP Control Protocol (RTCP) Extensions for Single-Source Multicast Sessions with Unicast FeedbackJ. Ott, J. Chesterfield, E. SchoolerFebruary 2010Updated by RFC 6128, ErrataProposed Standard
RFC 5725ASCII, PDFPost-Repair Loss RLE Report Block Type for RTP Control Protocol (RTCP) Extended Reports (XRs)A. Begen, D. Hsu, M. LagueFebruary 2010ErrataProposed Standard
RFC 5691ASCII, PDFRTP Payload Format for Elementary Streams with MPEG Surround Multi-Channel AudioF. de Bont, S. Doehla, M. Schmidt, R. SperschneiderOctober 2009Updates RFC 3640Proposed Standard
RFC 5686ASCII, PDFRTP Payload Format for mU-law EMbedded Codec for Low-delay IP Communication (UEMCLIP) Speech CodecY. Hiwasaki, H. OhmuroOctober 2009    Proposed Standard
RFC 5629ASCII, PDFA Framework for Application Interaction in the Session Initiation Protocol (SIP)J. RosenbergOctober 2009    Proposed Standard
RFC 5628ASCII, PDFRegistration Event Package Extension for Session Initiation Protocol (SIP) Globally Routable User Agent URIs (GRUUs)P. KyzivatOctober 2009ErrataProposed Standard
RFC 5627ASCII, PDFObtaining and Using Globally Routable User Agent URIs (GRUUs) in the Session Initiation Protocol (SIP)J. RosenbergOctober 2009ErrataProposed Standard
RFC 5630ASCII, PDFThe Use of the SIPS URI Scheme in the Session Initiation Protocol (SIP)F. AudetOctober 2009Updates RFC 3261, RFC 3608Proposed Standard
RFC 5626ASCII, PDFManaging 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 5658ASCII, PDFAddressing Record-Route Issues in the Session Initiation Protocol (SIP)T. Froment, C. Lebel, B. BonnaerensOctober 2009    Proposed Standard
RFC 5333ASCII, PDFIANA Registration of Enumservices for Internet CalendaringR. Mahy, B. HoeneisenOctober 2009Updated by RFC 6118Proposed Standard
RFC 5621ASCII, PDFMessage Body Handling in the Session Initiation Protocol (SIP)G. CamarilloSeptember 2009Updates RFC 3204, RFC 3261, RFC 3459, Updated by RFC 8262Proposed Standard
RFC 5582ASCII, PDFLocation-to-URL Mapping Architecture and FrameworkH. SchulzrinneSeptember 2009ErrataInformational
RFC 5606ASCII, PDFImplications of 'retransmission-allowed' for SIP Location ConveyanceJ. Peterson, T. Hardie, J. MorrisAugust 2009    Informational
RFC 5580ASCII, PDFCarrying Location Objects in RADIUS and DiameterH. Tschofenig, Ed., F. Adrangi, M. Jones, A. Lior, B. AbobaAugust 2009    Proposed Standard
RFC 5584ASCII, PDFRTP Payload Format for the Adaptive TRansform Acoustic Coding (ATRAC) FamilyM. Hatanaka, J. MatsumotoJuly 2009ErrataProposed Standard
RFC 5577ASCII, PDFRTP Payload Format for ITU-T Recommendation G.722.1P. Luthi, R. EvenJuly 2009Obsoletes RFC 3047, ErrataProposed Standard
RFC 5583ASCII, PDFSignaling Media Decoding Dependency in the Session Description Protocol (SDP)T. Schierl, S. WengerJuly 2009ErrataProposed Standard
RFC 5576ASCII, PDFSource-Specific Media Attributes in the Session Description Protocol (SDP)J. Lennox, J. Ott, T. SchierlJune 2009    Proposed Standard
RFC 5574ASCII, PDFRTP Payload Format for the Speex CodecG. Herlein, J. Valin, A. Heggestad, A. MoizardJune 2009    Proposed Standard
RFC 5567ASCII, PDFAn Architectural Framework for Media Server ControlT. Melanchuk, Ed.June 2009    Informational
RFC 5552ASCII, PDFSIP Interface to VoiceXML Media ServicesD. Burke, M. ScottMay 2009ErrataProposed Standard
RFC 5547ASCII, PDFA Session Description Protocol (SDP) Offer/Answer Mechanism to Enable File TransferM. Garcia-Martin, M. Isomaki, G. Camarillo, S. Loreto, P. KyzivatMay 2009ErrataProposed Standard
RFC 5527ASCII, PDFCombined User and Infrastructure ENUM in the e164.arpa TreeM. Haberler, O. Lendl, R. StastnyMay 2009    Informational
RFC 5526ASCII, PDFThe E.164 to Uniform Resource Identifiers (URI) Dynamic Delegation Discovery System (DDDS) Application for Infrastructure ENUMJ. Livingood, P. Pfautz, R. StastnyApril 2009    Informational
RFC 5506ASCII, PDFSupport for Reduced-Size Real-Time Transport Control Protocol (RTCP): Opportunities and ConsequencesI. Johansson, M. WesterlundApril 2009Updates RFC 3550, RFC 3711, RFC 4585, ErrataProposed Standard
RFC 5479ASCII, PDFRequirements and Analysis of Media Security Management ProtocolsD. Wing, Ed., S. Fries, H. Tschofenig, F. AudetApril 2009ErrataInformational
RFC 5491ASCII, PDFGEOPRIV Presence Information Data Format Location Object (PIDF-LO) Usage Clarification, Considerations, and RecommendationsJ. Winterbottom, M. Thomson, H. TschofenigMarch 2009Updates RFC 4119, Updated by RFC 7459, ErrataProposed Standard
RFC 5450ASCII, PDFTransmission Time Offsets in RTP StreamsD. Singer, H. DesineniMarch 2009    Proposed Standard
RFC 5486ASCII, PDFSession Peering for Multimedia Interconnect (SPEERMINT) TerminologyD. Malas, Ed., D. Meyer, Ed.March 2009    Informational
RFC 5478ASCII, PDFIANA Registration of New Session Initiation Protocol (SIP) Resource-Priority NamespacesJ. PolkMarch 2009    Proposed Standard
RFC 5484ASCII, PDFAssociating Time-Codes with RTP StreamsD. SingerMarch 2009    Proposed Standard
RFC 5432ASCII, PDFQuality of Service (QoS) Mechanism Selection in the Session Description Protocol (SDP)J. Polk, S. Dhesikan, G. CamarilloMarch 2009    Proposed Standard
RFC 5483ASCII, PDFENUM Implementation Issues and ExperiencesL. Conroy, K. FujiwaraMarch 2009    Informational
RFC 5438ASCII, PDFInstant Message Disposition Notification (IMDN)E. Burger, H. KhartabilFebruary 2009ErrataProposed Standard
RFC 5411ASCII, PDFA Hitchhiker's Guide to the Session Initiation Protocol (SIP)J. RosenbergFebruary 2009    Informational
RFC 5459ASCII, PDFG.729.1 RTP Payload Format Update: Discontinuous Transmission (DTX) SupportA. SollaudJanuary 2009Updates RFC 4749Proposed Standard
RFC 5404ASCII, PDFRTP Payload Format for G.719M. Westerlund, I. JohanssonJanuary 2009ErrataProposed Standard
RFC 5393ASCII, PDFAddressing an Amplification Vulnerability in Session Initiation Protocol (SIP) Forking ProxiesR. Sparks, Ed., S. Lawrence, A. Hawrylyshen, B. CampenDecember 2008Updates RFC 3261Proposed Standard
RFC 5407 a.k.a. BCP 147

ASCII, PDFExample 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 5390ASCII, PDFRequirements for Management of Overload in the Session Initiation ProtocolJ. RosenbergDecember 2008    Informational
RFC 5391ASCII, PDFRTP Payload Format for ITU-T Recommendation G.711.1A. SollaudNovember 2008    Proposed Standard
RFC 5373ASCII, PDFRequesting Answering Modes for the Session Initiation Protocol (SIP)D. Willis, Ed., A. AllenNovember 2008    Proposed Standard
RFC 5370ASCII, PDFThe Session Initiation Protocol (SIP) Conference Bridge Transcoding ModelG. CamarilloOctober 2008    Proposed Standard
RFC 5369ASCII, PDFFramework for Transcoding with the Session Initiation Protocol (SIP)G. CamarilloOctober 2008    Informational
RFC 5363ASCII, PDFFramework and Security Considerations for Session Initiation Protocol (SIP) URI-List ServicesG. Camarillo, A.B. RoachOctober 2008    Proposed Standard
RFC 5362ASCII, PDFThe Session Initiation Protocol (SIP) Pending Additions Event PackageG. CamarilloOctober 2008    Proposed Standard
RFC 5361ASCII, PDFA Document Format for Requesting ConsentG. CamarilloOctober 2008    Proposed Standard
RFC 5364ASCII, PDFExtensible Markup Language (XML) Format Extension for Representing Copy Control Attributes in Resource ListsM. Garcia-Martin, G. CamarilloOctober 2008    Proposed Standard
RFC 5360ASCII, PDFA Framework for Consent-Based Communications in the Session Initiation Protocol (SIP)J. Rosenberg, G. Camarillo, Ed., D. WillisOctober 2008Updated by RFC 8217, ErrataProposed Standard
RFC 5366ASCII, PDFConference Establishment Using Request-Contained Lists in the Session Initiation Protocol (SIP)G. Camarillo, A. JohnstonOctober 2008    Proposed Standard
RFC 5367ASCII, PDFSubscriptions to Request-Contained Resource Lists in the Session Initiation Protocol (SIP)G. Camarillo, A.B. Roach, O. LevinOctober 2008Updates RFC 3265Proposed Standard
RFC 5365ASCII, PDFMultiple-Recipient MESSAGE Requests in the Session Initiation Protocol (SIP)M. Garcia-Martin, G. CamarilloOctober 2008    Proposed Standard
RFC 5368ASCII, PDFReferring 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 5359 a.k.a. BCP 144

ASCII, PDFSession Initiation Protocol Service ExamplesA. Johnston, Ed., R. Sparks, C. Cunningham, S. Donovan, K. SummersOctober 2008    Best Current Practice
RFC 5371ASCII, PDFRTP Payload Format for JPEG 2000 Video StreamsS. Futemma, E. Itakura, A. LeungOctober 2008    Proposed Standard
RFC 5372ASCII, PDFPayload Format for JPEG 2000 Video: Extensions for Scalability and Main Header RecoveryA. Leung, S. Futemma, E. ItakuraOctober 2008    Proposed Standard
RFC 5344ASCII, PDFPresence and Instant Messaging Peering Use CasesA. Houri, E. Aoki, S. ParameswarOctober 2008    Informational
RFC 5346ASCII, PDFOperational Requirements for ENUM-Based Softswitch UseJ. Lim, W. Kim, C. Park, L. ConroyOctober 2008ErrataInformational
RFC 5341ASCII, PDFThe Internet Assigned Number Authority (IANA) tel Uniform Resource Identifier (URI) Parameter RegistryC. Jennings, V. GurbaniSeptember 2008Updates RFC 3966Proposed Standard
RFC 5196ASCII, PDFSession Initiation Protocol (SIP) User Agent Capability Extension to Presence Information Data Format (PIDF)M. Lonnfors, K. KissSeptember 2008    Proposed Standard
RFC 5261ASCII, PDFAn Extensible Markup Language (XML) Patch Operations Framework Utilizing XML Path Language (XPath) SelectorsJ. UrpalainenSeptember 2008ErrataProposed Standard
RFC 5262ASCII, PDFPresence Information Data Format (PIDF) Extension for Partial PresenceM. Lonnfors, E. Leppanen, H. Khartabil, J. UrpalainenSeptember 2008    Proposed Standard
RFC 5263ASCII, PDFSession Initiation Protocol (SIP) Extension for Partial Notification of Presence InformationM. Lonnfors, J. Costa-Requena, E. Leppanen, H. KhartabilSeptember 2008    Proposed Standard
RFC 5264ASCII, PDFPublication of Partial Presence InformationA. Niemi, M. Lonnfors, E. LeppanenSeptember 2008    Proposed Standard
RFC 5215ASCII, PDFRTP Payload Format for Vorbis Encoded AudioL. BarbatoAugust 2008ErrataProposed Standard
RFC 5223ASCII, PDFDiscovering Location-to-Service Translation (LoST) Servers Using the Dynamic Host Configuration Protocol (DHCP)H. Schulzrinne, J. Polk, H. TschofenigAugust 2008    Proposed Standard
RFC 5222ASCII, PDFLoST: A Location-to-Service Translation ProtocolT. Hardie, A. Newton, H. Schulzrinne, H. TschofenigAugust 2008Updated by RFC 6848, ErrataProposed Standard
RFC 5278ASCII, PDFIANA Registration of Enumservices for Voice and Video MessagingJ. Livingood, D. TroshynskiJuly 2008Updated by RFC 6118Proposed Standard
RFC 5285ASCII, PDFA General Mechanism for RTP Header ExtensionsD. Singer, H. DesineniJuly 2008Obsoleted by RFC 8285Proposed Standard
RFC 5244ASCII, PDFDefinition of Events for Channel-Oriented Telephony SignallingH. Schulzrinne, T. TaylorJune 2008Updates RFC 4733Proposed Standard
RFC 5239ASCII, PDFA Framework for Centralized ConferencingM. Barnes, C. Boulton, O. LevinJune 2008ErrataProposed Standard
RFC 5194ASCII, PDFFramework for Real-Time Text over IP Using the Session Initiation Protocol (SIP)A. van Wijk, Ed., G. Gybels, Ed.June 2008    Informational
RFC 5167ASCII, PDFMedia Server Control Protocol RequirementsM. Dolly, R. EvenMarch 2008    Informational
RFC 5140ASCII, PDFA Telephony Gateway REgistration Protocol (TGREP)M. Bangalore, R. Kumar, J. Rosenberg, H. Salama, D.N. ShahMarch 2008ErrataProposed Standard
RFC 5188ASCII, PDFRTP 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 5104ASCII, PDFCodec 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 5124ASCII, PDFExtended Secure RTP Profile for Real-time Transport Control Protocol (RTCP)-Based Feedback (RTP/SAVPF)J. Ott, E. CarraraFebruary 2008    Proposed Standard
RFC 5139ASCII, PDFRevised Civic Location Format for Presence Information Data Format Location Object (PIDF-LO)M. Thomson, J. WinterbottomFebruary 2008Updates RFC 4119Proposed Standard
RFC 5219ASCII, PDFA More Loss-Tolerant RTP Payload Format for MP3 AudioR. FinlaysonFebruary 2008Obsoletes RFC 3119Proposed Standard
RFC 5118ASCII, PDFSession Initiation Protocol (SIP) Torture Test Messages for Internet Protocol Version 6 (IPv6)V. Gurbani, C. Boulton, R. SparksFebruary 2008ErrataInformational
RFC 5117ASCII, PDFRTP TopologiesM. Westerlund, S. WengerJanuary 2008Obsoleted by RFC 7667, ErrataInformational
RFC 5012ASCII, PDFRequirements for Emergency Context Resolution with Internet TechnologiesH. Schulzrinne, R. Marshall, Ed.January 2008ErrataInformational
RFC 5031ASCII, PDFA Uniform Resource Name (URN) for Emergency and Other Well-Known ServicesH. SchulzrinneJanuary 2008Updated by RFC 7163, ErrataProposed Standard
RFC 5069ASCII, PDFSecurity Threats and Requirements for Emergency Call Marking and MappingT. Taylor, Ed., H. Tschofenig, H. Schulzrinne, M. ShanmugamJanuary 2008    Informational
RFC 5039ASCII, PDFThe Session Initiation Protocol (SIP) and SpamJ. Rosenberg, C. JenningsJanuary 2008    Informational
RFC 5133ASCII, PDFTerminal Endpoint Identifier (TEI) Query Request Number ChangeM. Tuexen, K. MorneaultDecember 2007Updates RFC 4233Proposed Standard
RFC 5105ASCII, PDFENUM Validation Token Format DefinitionO. LendlDecember 2007    Proposed Standard
RFC 5109ASCII, PDFRTP Payload Format for Generic Forward Error CorrectionA. Li, Ed.December 2007Obsoletes RFC 2733, RFC 3009, ErrataProposed Standard
RFC 5079ASCII, PDFRejecting Anonymous Requests in the Session Initiation Protocol (SIP)J. RosenbergDecember 2007    Proposed Standard
RFC 5025ASCII, PDFPresence Authorization RulesJ. RosenbergDecember 2007ErrataProposed Standard
RFC 5076ASCII, PDFENUM Validation Information Mapping for the Extensible Provisioning ProtocolB. HoeneisenDecember 2007    Proposed Standard
RFC 5067ASCII, PDFInfrastructure ENUM RequirementsS. Lind, P. PfautzNovember 2007    Informational
RFC 5057ASCII, PDFMultiple Dialog Usages in the Session Initiation ProtocolR. SparksNovember 2007    Informational
RFC 5028ASCII, PDFA Telephone Number Mapping (ENUM) Service Registration for Instant Messaging (IM) ServicesR. MahyOctober 2007Updated by RFC 6118Proposed Standard
RFC 5027ASCII, PDFSecurity Preconditions for Session Description Protocol (SDP) Media StreamsF. Andreasen, D. WingOctober 2007Updates RFC 3312Proposed Standard
RFC 4975ASCII, PDFThe Message Session Relay Protocol (MSRP)B. Campbell, Ed., R. Mahy, Ed., C. Jennings, Ed.September 2007Updated by RFC 7977, ErrataProposed Standard
RFC 4976ASCII, PDFRelay Extensions for the Message Sessions Relay Protocol (MSRP)C. Jennings, R. Mahy, A. B. RoachSeptember 2007Updated by RFC 7977, ErrataProposed Standard
RFC 5018ASCII, PDFConnection Establishment in the Binary Floor Control Protocol (BFCP)G. CamarilloSeptember 2007    Proposed Standard
RFC 4969ASCII, PDFIANA Registration for vCard EnumserviceA. MayrhoferAugust 2007Updated by RFC 6118Proposed Standard
RFC 4979ASCII, PDFIANA Registration for Enumservice 'XMPP'A. MayrhoferAugust 2007Updated by RFC 6118Proposed Standard
RFC 4958ASCII, PDFA Framework for Supporting Emergency Telecommunications Services (ETS) within a Single Administrative DomainK. CarlbergJuly 2007ErrataInformational
RFC 4916ASCII, PDFConnected Identity in the Session Initiation Protocol (SIP)J. ElwellJune 2007Updates RFC 3261Proposed Standard
RFC 4901ASCII, PDFProtocol Extensions for Header Compression over MPLSJ. Ash, Ed., J. Hand, Ed., A. Malis, Ed.June 2007    Proposed Standard
RFC 4904ASCII, PDFRepresenting Trunk Groups in tel/sip Uniform Resource Identifiers (URIs)V. Gurbani, C. JenningsJune 2007    Proposed Standard
RFC 4826ASCII, PDFExtensible Markup Language (XML) Formats for Representing Resource ListsJ. RosenbergMay 2007ErrataProposed Standard
RFC 4827ASCII, PDFAn Extensible Markup Language (XML) Configuration Access Protocol (XCAP) Usage for Manipulating Presence Document ContentsM. Isomaki, E. LeppanenMay 2007ErrataProposed Standard
RFC 4825ASCII, PDFThe Extensible Markup Language (XML) Configuration Access Protocol (XCAP)J. RosenbergMay 2007    Proposed Standard
RFC 4780ASCII, PDFManagement Information Base for the Session Initiation Protocol (SIP)K. Lingle, J-F. Mule, J. Maeng, D. WalkerApril 2007    Proposed Standard
RFC 4867ASCII, PDFRTP 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 2007Obsoletes RFC 3267, ErrataProposed Standard
RFC 4856ASCII, PDFMedia Type Registration of Payload Formats in the RTP Profile for Audio and Video ConferencesS. CasnerFebruary 2007Obsoletes RFC 3555, ErrataProposed Standard
RFC 4855ASCII, PDFMedia Type Registration of RTP Payload FormatsS. CasnerFebruary 2007Obsoletes RFC 3555Proposed Standard
RFC 4745ASCII, PDFCommon Policy: A Document Format for Expressing Privacy PreferencesH. Schulzrinne, H. Tschofenig, J. Morris, J. Cuellar, J. Polk, J. RosenbergFebruary 2007ErrataProposed Standard
RFC 4796ASCII, PDFThe Session Description Protocol (SDP) Content AttributeJ. Hautakorpi, G. CamarilloFebruary 2007    Proposed Standard
RFC 4629ASCII, PDFRTP 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 4628ASCII, PDFRTP Payload Format for H.263 Moving RFC 2190 to Historic StatusR. EvenJanuary 2007    Informational
RFC 4788ASCII, PDFEnhancements to RTP Payload Formats for EVRC Family CodecsQ. Xie, R. KapoorJanuary 2007Updates RFC 3558, Updated by RFC 5188Proposed Standard
RFC 4733ASCII, PDFRTP Payload for DTMF Digits, Telephony Tones, and Telephony SignalsH. Schulzrinne, T. TaylorDecember 2006Obsoletes RFC 2833, Updated by RFC 4734, RFC 5244, ErrataProposed Standard
RFC 4734ASCII, PDFDefinition of Events for Modem, Fax, and Text Telephony SignalsH. Schulzrinne, T. TaylorDecember 2006Obsoletes RFC 2833, Updates RFC 4733Proposed Standard
RFC 4759ASCII, PDFThe ENUM Dip Indicator Parameter for the "tel" URIR. Stastny, R. Shockey, L. ConroyDecember 2006    Proposed Standard
RFC 4725ASCII, PDFENUM Validation ArchitectureA. Mayrhofer, B. HoeneisenNovember 2006    Informational
RFC 4769ASCII, PDFIANA Registration for an Enumservice Containing Public Switched Telephone Network (PSTN) Signaling Information J. Livingood, R. ShockeyNovember 2006Updated by RFC 6118Proposed Standard
RFC 4756ASCII, PDFForward Error Correction Grouping Semantics in Session Description ProtocolA. LiNovember 2006Obsoleted by RFC 5956Proposed Standard
RFC 4582ASCII, PDFThe Binary Floor Control Protocol (BFCP)G. Camarillo, J. Ott, K. DrageNovember 2006    Proposed Standard
RFC 4583ASCII, PDFSession Description Protocol (SDP) Format for Binary Floor Control Protocol (BFCP) StreamsG. CamarilloNovember 2006ErrataProposed Standard
RFC 4776ASCII, PDFDynamic Host Configuration Protocol (DHCPv4 and DHCPv6) Option for Civic Addresses Configuration InformationH. SchulzrinneNovember 2006Obsoletes RFC 4676, Updated by RFC 5774, RFC 6848Proposed Standard
RFC 4730ASCII, PDFA Session Initiation Protocol (SIP) Event Package for Key Press Stimulus (KPML)E. Burger, M. DollyNovember 2006ErrataProposed Standard
RFC 4695ASCII, PDFRTP Payload Format for MIDIJ. Lazzaro, J. WawrzynekNovember 2006Obsoleted by RFC 6295, ErrataProposed Standard
RFC 4696ASCII, PDFAn Implementation Guide for RTP MIDIJ. Lazzaro, J. WawrzynekNovember 2006ErrataInformational
RFC 4676ASCII, PDFDynamic Host Configuration Protocol (DHCPv4 and DHCPv6) Option for Civic Addresses Configuration InformationH. SchulzrinneOctober 2006Obsoleted by RFC 4776, ErrataProposed Standard
RFC 4694ASCII, PDFNumber Portability Parameters for the "tel" URIJ. YuOctober 2006    Proposed Standard
RFC 4749ASCII, PDFRTP Payload Format for the G.729.1 Audio CodecA. SollaudOctober 2006Updated by RFC 5459Proposed Standard
RFC 4660ASCII, PDFFunctional Description of Event Notification FilteringH. Khartabil, E. Leppanen, M. Lonnfors, J. Costa-RequenaSeptember 2006Updated by RFC 6665, ErrataProposed Standard
RFC 4661ASCII, PDFAn Extensible Markup Language (XML)-Based Format for Event Notification FilteringH. Khartabil, E. Leppanen, M. Lonnfors, J. Costa-RequenaSeptember 2006ErrataProposed Standard
RFC 4666ASCII, PDFSignaling System 7 (SS7) Message Transfer Part 3 (MTP3) - User Adaptation Layer (M3UA)K. Morneault, Ed., J. Pastor-Balbas, Ed.September 2006Obsoletes RFC 3332, ErrataProposed Standard
RFC 4574ASCII, PDFThe Session Description Protocol (SDP) Label AttributeO. Levin, G. CamarilloAugust 2006    Proposed Standard
RFC 4579 a.k.a. BCP 119

ASCII, PDFSession Initiation Protocol (SIP) Call Control - Conferencing for User AgentsA. Johnston, O. LevinAugust 2006    Best Current Practice
RFC 4575ASCII, PDFA Session Initiation Protocol (SIP) Event Package for Conference StateJ. Rosenberg, H. Schulzrinne, O. Levin, Ed.August 2006    Proposed Standard
RFC 4484ASCII, PDFTrait-Based Authorization Requirements for the Session Initiation Protocol (SIP)J. Peterson, J. Polk, D. Sicker, H. TschofenigAugust 2006    Informational
RFC 4662ASCII, PDFA Session Initiation Protocol (SIP) Event Notification Extension for Resource ListsA. B. Roach, B. Campbell, J. RosenbergAugust 2006ErrataProposed Standard
RFC 4474ASCII, PDFEnhancements for Authenticated Identity Management in the Session Initiation Protocol (SIP)J. Peterson, C. JenningsAugust 2006ErrataProposed Standard
RFC 4587ASCII, PDFRTP Payload Format for H.261 Video StreamsR. EvenAugust 2006Obsoletes RFC 2032, ErrataProposed Standard
RFC 4597ASCII, PDFConferencing ScenariosR. Even, N. IsmailAugust 2006    Informational
RFC 4598ASCII, PDFReal-time Transport Protocol (RTP) Payload Format for Enhanced AC-3 (E-AC-3) AudioB. LinkJuly 2006    Proposed Standard
RFC 4588ASCII, PDFRTP Retransmission Payload FormatJ. Rey, D. Leon, A. Miyazaki, V. Varsa, R. HakenbergJuly 2006ErrataProposed Standard
RFC 4596ASCII, PDFGuidelines for Usage of the Session Initiation Protocol (SIP) Caller Preferences ExtensionJ. Rosenberg, P. KyzivatJuly 2006ErrataInformational
RFC 4586ASCII, PDFExtended 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 4585ASCII, PDFExtended RTP Profile for Real-time Transport Control Protocol (RTCP)-Based Feedback (RTP/AVPF)J. Ott, S. Wenger, N. Sato, C. Burmeister, J. ReyJuly 2006Updated by RFC 5506, RFC 8108, ErrataProposed Standard
RFC 4571ASCII, PDFFraming Real-time Transport Protocol (RTP) and RTP Control Protocol (RTCP) Packets over Connection-Oriented TransportJ. LazzaroJuly 2006ErrataProposed Standard
RFC 4573ASCII, PDFMIME Type Registration for RTP Payload Format for H.224R. Even, A. LochbaumJuly 2006    Proposed Standard
RFC 4568ASCII, PDFSession Description Protocol (SDP) Security Descriptions for Media StreamsF. Andreasen, M. Baugher, D. WingJuly 2006    Proposed Standard
RFC 4567ASCII, PDFKey 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 4570ASCII, PDFSession Description Protocol (SDP) Source FiltersB. Quinn, R. FinlaysonJuly 2006ErrataProposed Standard
RFC 4566ASCII, PDFSDP: Session Description ProtocolM. Handley, V. Jacobson, C. PerkinsJuly 2006Obsoletes RFC 2327, RFC 3266, ErrataProposed Standard
RFC 4572ASCII, PDFConnection-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 4569ASCII, PDFInternet Assigned Number Authority (IANA) Registration of the Message Media Feature TagG. CamarilloJuly 2006    Informational
RFC 4589ASCII, PDFLocation Types RegistryH. Schulzrinne, H. TschofenigJuly 2006    Proposed Standard
RFC 4482ASCII, PDFCIPID: Contact Information for the Presence Information Data FormatH. SchulzrinneJuly 2006    Proposed Standard
RFC 4481ASCII, PDFTimed Presence Extensions to the Presence Information Data Format (PIDF) to Indicate Status Information for Past and Future Time IntervalsH. SchulzrinneJuly 2006    Proposed Standard
RFC 4480ASCII, PDFRPID: Rich Presence Extensions to the Presence Information Data Format (PIDF)H. Schulzrinne, V. Gurbani, P. Kyzivat, J. RosenbergJuly 2006ErrataProposed Standard
RFC 4479ASCII, PDFA Data Model for PresenceJ. RosenbergJuly 2006ErrataProposed Standard
RFC 4538ASCII, PDFRequest Authorization through Dialog Identification in the Session Initiation Protocol (SIP)J. RosenbergJune 2006    Proposed Standard
RFC 4473ASCII, PDFRequirements for Internet Media Guides (IMGs)Y. Nomura, R. Walsh, J-P. Luoma, J. Ott, H. SchulzrinneMay 2006    Informational
RFC 4485ASCII, PDFGuidelines for Authors of Extensions to the Session Initiation Protocol (SIP)J. Rosenberg, H. SchulzrinneMay 2006    Informational
RFC 4483ASCII, PDFA Mechanism for Content Indirection in Session Initiation Protocol (SIP) MessagesE. Burger, Ed.May 2006ErrataProposed Standard
RFC 4508ASCII, PDFConveying Feature Tags with the Session Initiation Protocol (SIP) REFER MethodO. Levin, A. JohnstonMay 2006Updated by RFC 8217Proposed Standard
RFC 4475ASCII, PDFSession Initiation Protocol (SIP) Torture Test MessagesR. Sparks, Ed., A. Hawrylyshen, A. Johnston, J. Rosenberg, H. SchulzrinneMay 2006    Informational
RFC 4488ASCII, PDFSuppression of Session Initiation Protocol (SIP) REFER Method Implicit SubscriptionO. LevinMay 2006    Proposed Standard
RFC 4497 a.k.a. BCP 117

ASCII, PDFInterworking between the Session Initiation Protocol (SIP) and QSIGJ. Elwell, F. Derks, P. Mourot, O. RousseauMay 2006    Best Current Practice
RFC 4435ASCII, PDFA Framework for the Usage of Internet Media Guides (IMGs)Y. Nomura, R. Walsh, J-P. Luoma, H. Asaeda, H. SchulzrinneApril 2006    Informational
RFC 4453ASCII, PDFRequirements for Consent-Based Communications in the Session Initiation Protocol (SIP)J. Rosenberg, G. Camarillo, Ed., D. WillisApril 2006    Informational
RFC 4424ASCII, PDFReal-Time Transport Protocol (RTP) Payload Format for the Variable-Rate Multimode Wideband (VMR-WB) Extension Audio CodecS. AhmadiFebruary 2006Updates RFC 4348Proposed Standard
RFC 4414ASCII, PDFAn ENUM Registry Type for the Internet Registry Information Service (IRIS) A. NewtonFebruary 2006    Proposed Standard
RFC 4396ASCII, PDFRTP Payload Format for 3rd Generation Partnership Project (3GPP) Timed TextJ. Rey, Y. MatsuiFebruary 2006ErrataProposed Standard
RFC 4421ASCII, PDFRTP Payload Format for Uncompressed Video: Additional Colour Sampling ModesC. PerkinsFebruary 2006Updates RFC 4175Proposed Standard
RFC 4425ASCII, PDFRTP Payload Format for Video Codec 1 (VC-1)A. KlemetsFebruary 2006ErrataProposed Standard
RFC 4376ASCII, PDFRequirements for Floor Control ProtocolsP. Koskelainen, J. Ott, H. Schulzrinne, X. WuFebruary 2006    Informational
RFC 4353ASCII, PDFA Framework for Conferencing with the Session Initiation Protocol (SIP)J. RosenbergFebruary 2006    Informational
RFC 4411ASCII, PDFExtending the Session Initiation Protocol (SIP) Reason Header for Preemption EventsJ. PolkFebruary 2006    Proposed Standard
RFC 4412ASCII, PDFCommunications Resource Priority for the Session Initiation Protocol (SIP)H. Schulzrinne, J. PolkFebruary 2006Updated by RFC 7134Proposed Standard
RFC 4166ASCII, PDFTelephony Signalling Transport over Stream Control Transmission Protocol (SCTP) Applicability StatementL. Coene, J. Pastor-BalbasFebruary 2006    Informational
RFC 4415ASCII, PDFIANA Registration for Enumservice VoiceR. Brandner, L. Conroy, R. StastnyFebruary 2006Updated by RFC 6118Proposed Standard
RFC 4351ASCII, PDFReal-Time Transport Protocol (RTP) Payload for Text Conversation Interleaved in an Audio StreamG. Hellstrom, P. JonesJanuary 2006    Historic
RFC 4348ASCII, PDFReal-Time Transport Protocol (RTP) Payload Format for the Variable-Rate Multimode Wideband (VMR-WB) Audio CodecS. AhmadiJanuary 2006Updated by RFC 4424Proposed Standard
RFC 4352ASCII, PDFRTP Payload Format for the Extended Adaptive Multi-Rate Wideband (AMR-WB+) Audio CodecJ. Sjoberg, M. Westerlund, A. Lakaniemi, S. WengerJanuary 2006ErrataProposed Standard
RFC 4375ASCII, PDFEmergency Telecommunications Services (ETS) Requirements for a Single Administrative DomainK. CarlbergJanuary 2006    Informational
RFC 4321ASCII, PDFProblems Identified Associated with the Session Initiation Protocol's (SIP) Non-INVITE TransactionR. SparksJanuary 2006    Informational
RFC 4320ASCII, PDFActions Addressing Identified Issues with the Session Initiation Protocol's (SIP) Non-INVITE TransactionR. SparksJanuary 2006Updates RFC 3261Proposed Standard
RFC 4233ASCII, PDFIntegrated 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 4355ASCII, PDFIANA Registration for Enumservices email, fax, mms, ems, and smsR. Brandner, L. Conroy, R. StastnyJanuary 2006Updated by RFC 6118Proposed Standard
RFC 4298ASCII, PDFRTP Payload Format for BroadVoice Speech CodecsJ.-H. Chen, W. Lee, J. ThyssenDecember 2005    Proposed Standard
RFC 4119ASCII, PDFA Presence-based GEOPRIV Location Object FormatJ. PetersonDecember 2005Updated by RFC 5139, RFC 5491, RFC 7459, ErrataProposed Standard
RFC 4317ASCII, PDFSession Description Protocol (SDP) Offer/Answer ExamplesA. Johnston, R. SparksDecember 2005    Informational
RFC 4313ASCII, PDFRequirements for Distributed Control of Automatic Speech Recognition (ASR), Speaker Identification/Speaker Verification (SI/SV), and Text-to-Speech (TTS) ResourcesD. OranDecember 2005    Informational
RFC 4170 a.k.a. BCP 110

ASCII, PDFTunneling Multiplexed Compressed RTP (TCRTP)B. Thompson, T. Koren, D. WingNovember 2005    Best Current Practice
RFC 4247ASCII, PDFRequirements for Header Compression over MPLSJ. Ash, B. Goode, J. Hand, R. ZhangNovember 2005    Informational
RFC 4190ASCII, PDFFramework for Supporting Emergency Telecommunications Service (ETS) in IP TelephonyK. Carlberg, I. Brown, C. BeardNovember 2005    Informational
RFC 4235ASCII, PDFAn INVITE-Initiated Dialog Event Package for the Session Initiation Protocol (SIP)J. Rosenberg, H. Schulzrinne, R. Mahy, Ed.November 2005Updated by RFC 7463, ErrataProposed Standard
RFC 4245ASCII, PDFHigh-Level Requirements for Tightly Coupled SIP ConferencingO. Levin, R. EvenNovember 2005    Informational
RFC 4244ASCII, PDFAn Extension to the Session Initiation Protocol (SIP) for Request History InformationM. Barnes, Ed.November 2005Obsoleted by RFC 7044, ErrataProposed Standard
RFC 4184ASCII, PDFRTP Payload Format for AC-3 AudioB. Link, T. Hager, J. FlaksOctober 2005    Proposed Standard
RFC 4189ASCII, PDFRequirements for End-to-Middle Security for the Session Initiation Protocol (SIP)K. Ono, S. TachimotoOctober 2005    Informational
RFC 4168ASCII, PDFThe Stream Control Transmission Protocol (SCTP) as a Transport for the Session Initiation Protocol (SIP)J. Rosenberg, H. Schulzrinne, G. CamarilloOctober 2005    Proposed Standard
RFC 4175ASCII, PDFRTP Payload Format for Uncompressed VideoL. Gharai, C. PerkinsSeptember 2005Updated by RFC 4421, ErrataProposed Standard
RFC 4145ASCII, PDFTCP-Based Media Transport in the Session Description Protocol (SDP)D. Yon, G. CamarilloSeptember 2005Updated by RFC 4572Proposed Standard
RFC 4129ASCII, PDFDigital 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 4165ASCII, PDFSignaling 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 4079ASCII, PDFA Presence Architecture for the Distribution of GEOPRIV Location ObjectsJ. PetersonJuly 2005    Informational
RFC 4103ASCII, PDFRTP Payload for Text ConversationG. Hellstrom, P. JonesJune 2005Obsoletes RFC 2793, ErrataProposed Standard
RFC 4102ASCII, PDFRegistration of the text/red MIME Sub-TypeP. JonesJune 2005Updated by RFC 6354, ErrataProposed Standard
RFC 4091ASCII, PDFThe Alternative Network Address Types (ANAT) Semantics for the Session Description Protocol (SDP) Grouping FrameworkG. Camarillo, J. RosenbergJune 2005Obsoleted by RFC 5245Proposed Standard
RFC 4117ASCII, PDFTranscoding 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 4092ASCII, PDFUsage 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 4114ASCII, PDFE.164 Number Mapping for the Extensible Provisioning Protocol (EPP)S. HollenbeckJune 2005ErrataProposed Standard
RFC 4060ASCII, PDFRTP 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 4083ASCII, PDFInput 3rd-Generation Partnership Project (3GPP) Release 5 Requirements on the Session Initiation Protocol (SIP)M. Garcia-MartinMay 2005    Informational
RFC 4040ASCII, PDFRTP Payload Format for a 64 kbit/s Transparent CallR. KreuterApril 2005    Proposed Standard
RFC 4028ASCII, PDFSession Timers in the Session Initiation Protocol (SIP)S. Donovan, J. RosenbergApril 2005ErrataProposed Standard
RFC 4032ASCII, PDF Update to the Session Initiation Protocol (SIP) Preconditions Framework G. Camarillo, P. KyzivatMarch 2005Updates RFC 3312Proposed Standard
RFC 3984ASCII, PDFRTP Payload Format for H.264 Video S. Wenger, M.M. Hannuksela, T. Stockhammer, M. Westerlund, D. SingerFebruary 2005Obsoleted by RFC 6184Proposed Standard
RFC 4002ASCII, PDF IANA Registration for Enumservice 'web' and 'ft' R. Brandner, L. Conroy, R. StastnyFebruary 2005Updated by RFC 6118Proposed Standard
RFC 3994ASCII, PDF Indication of Message Composition for Instant Messaging H. SchulzrinneJanuary 2005    Proposed Standard
RFC 3953ASCII, PDFTelephone Number Mapping (ENUM) Service Registration for Presence Services J. PetersonJanuary 2005Updated by RFC 6118Proposed Standard
RFC 3951ASCII, PDF Internet Low Bit Rate Codec (iLBC) S. Andersen, A. Duric, H. Astrom, R. Hagen, W. Kleijn, J. LindenDecember 2004    Experimental
RFC 3952ASCII, PDF Real-time Transport Protocol (RTP) Payload Format for internet Low Bit Rate Codec (iLBC) Speech A. Duric, S. AndersenDecember 2004    Experimental
RFC 3966ASCII, PDF The tel URI for Telephone Numbers H. SchulzrinneDecember 2004Obsoletes RFC 2806, Updated by RFC 5341, ErrataProposed Standard
RFC 3960ASCII, PDF Early Media and Ringing Tone Generation in the Session Initiation Protocol (SIP) G. Camarillo, H. SchulzrinneDecember 2004    Informational
RFC 3959ASCII, PDF The Early Session Disposition Type for the Session Initiation Protocol (SIP) G. CamarilloDecember 2004ErrataProposed Standard
RFC 3969 a.k.a. BCP 99

ASCII, PDF 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 3968 a.k.a. BCP 98

ASCII, PDF The Internet Assigned Number Authority (IANA) Header Field Parameter Registry for the Session Initiation Protocol (SIP) G. CamarilloDecember 2004Updates RFC 3427Best Current Practice
RFC 3880ASCII, PDF Call Processing Language (CPL): A Language for User Control of Internet Telephony Services J. Lennox, X. Wu, H. SchulzrinneOctober 2004    Proposed Standard
RFC 3903ASCII, PDF Session Initiation Protocol (SIP) Extension for Event State Publication A. Niemi, Ed.October 2004    Proposed Standard
RFC 3911ASCII, PDF The Session Initiation Protocol (SIP) "Join" Header R. Mahy, D. PetrieOctober 2004    Proposed Standard
RFC 3868ASCII, PDF 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 Management Information Base for Telephony Routing over IP (TRIP) D. Zinman, D. Walker, J. JiangSeptember 2004    Proposed Standard
RFC 3890ASCII, PDF A Transport Independent Bandwidth Modifier for the Session Description Protocol (SDP) M. WesterlundSeptember 2004    Proposed Standard
RFC 3893ASCII, PDF Session Initiation Protocol (SIP) Authenticated Identity Body (AIB) Format J. PetersonSeptember 2004    Proposed Standard
RFC 3892ASCII, PDF The Session Initiation Protocol (SIP) Referred-By Mechanism R. SparksSeptember 2004Updated by RFC 8217Proposed Standard
RFC 3891ASCII, PDF The Session Initiation Protocol (SIP) "Replaces" Header R. Mahy, B. Biggs, R. DeanSeptember 2004ErrataProposed Standard
RFC 3873ASCII, PDF Stream Control Transmission Protocol (SCTP) Management Information Base (MIB) J. Pastor, M. BelinchonSeptember 2004    Proposed Standard
RFC 3842ASCII, PDF A Message Summary and Message Waiting Indication Event Package for the Session Initiation Protocol (SIP) R. MahyAugust 2004    Proposed Standard
RFC 3840ASCII, PDF Indicating User Agent Capabilities in the Session Initiation Protocol (SIP) J. Rosenberg, H. Schulzrinne, P. KyzivatAugust 2004    Proposed Standard
RFC 3841ASCII, PDF Caller Preferences for the Session Initiation Protocol (SIP) J. Rosenberg, H. Schulzrinne, P. KyzivatAugust 2004    Proposed Standard
RFC 3825ASCII, PDF Dynamic Host Configuration Protocol Option for Coordinate-based Location Configuration Information J. Polk, J. Schnizlein, M. LinsnerJuly 2004Obsoleted by RFC 6225Proposed Standard
RFC 3853ASCII, PDF S/MIME Advanced Encryption Standard (AES) Requirement for the Session Initiation Protocol (SIP) J. PetersonJuly 2004Updates RFC 3261Proposed Standard
RFC 3824ASCII, PDF Using E.164 numbers with the Session Initiation Protocol (SIP) J. Peterson, H. Liu, J. Yu, B. CampbellJune 2004    Informational
RFC 3788ASCII, PDF Security Considerations for Signaling Transport (SIGTRAN) Protocols J. Loughney, M. Tuexen, Ed., J. Pastor-BalbasJune 2004    Proposed Standard
RFC 3807ASCII, PDF V5.2-User Adaptation Layer (V5UA) E. Weilandt, N. Khanchandani, S. RaoJune 2004Updates RFC 3057Proposed Standard
RFC 3725 a.k.a. BCP 85

ASCII, PDF 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 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 Telephone Number Mapping (ENUM) Service Registration for H.323 O. LevinApril 2004Updated by RFC 6118Proposed Standard
RFC 3764ASCII, PDF enumservice registration for Session Initiation Protocol (SIP) Addresses-of-Record J. PetersonApril 2004Updated by RFC 6118Proposed Standard
RFC 3711ASCII, PDF The Secure Real-time Transport Protocol (SRTP) M. Baugher, D. McGrew, M. Naslund, E. Carrara, K. NorrmanMarch 2004Updated by RFC 5506, RFC 6904, ErrataProposed Standard
RFC 3680ASCII, PDF A Session Initiation Protocol (SIP) Event Package for Registrations J. RosenbergMarch 2004Updated by RFC 6140, ErrataProposed Standard
RFC 3693ASCII, PDF Geopriv Requirements J. Cuellar, J. Morris, D. Mulligan, J. Peterson, J. PolkFebruary 2004Updated by RFC 6280, RFC 7459, ErrataInformational
RFC 3694ASCII, PDFThreat Analysis of the Geopriv Protocol M. Danley, D. Mulligan, J. Morris, J. PetersonFebruary 2004Updated by RFC 6280Informational
RFC 3689ASCII, PDF General Requirements for Emergency Telecommunication Service (ETS) K. Carlberg, R. AtkinsonFebruary 2004    Informational
RFC 3690ASCII, PDF IP Telephony Requirements for Emergency Telecommunication Service (ETS) K. Carlberg, R. AtkinsonFebruary 2004    Informational
RFC 3702ASCII, PDF Authentication, Authorization, and Accounting Requirements for the Session Initiation Protocol (SIP) J. Loughney, G. CamarilloFebruary 2004    Informational
RFC 3665 a.k.a. BCP 75

ASCII, PDF 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 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 3611ASCII, PDF RTP Control Protocol Extended Reports (RTCP XR) T. Friedman, Ed., R. Caceres, Ed., A. Clark, Ed.November 2003ErrataProposed Standard
RFC 3640ASCII, PDF 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 3605ASCII, PDF Real Time Control Protocol (RTCP) attribute in Session Description Protocol (SDP) C. HuitemaOctober 2003ErrataProposed Standard
RFC 3608ASCII, PDF Session Initiation Protocol (SIP) Extension Header Field for Service Route Discovery During Registration D. Willis, B. HoeneisenOctober 2003Updated by RFC 5630Proposed Standard
RFC 3578ASCII, PDF 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 An Extension to the Session Initiation Protocol (SIP) for Symmetric Response Routing J. Rosenberg, H. SchulzrinneAugust 2003    Proposed Standard
RFC 3545ASCII, PDF 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, PS, PDF, PDF with ImagesRTP: A Transport Protocol for Real-Time Applications H. Schulzrinne, S. Casner, R. Frederick, V. JacobsonJuly 2003Obsoletes RFC 1889, Updated by RFC 5506, RFC 5761, RFC 6051, RFC 6222, RFC 7022, RFC 7160, RFC 7164, RFC 8083, RFC 8108, ErrataInternet Standard (changed from Draft Standard)
RFC 3551 a.k.a. STD 65

ASCII, PS, PDF, PDF with Images 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 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 Session Description Protocol (SDP) Bandwidth Modifiers for RTP Control Protocol (RTCP) Bandwidth S. CasnerJuly 2003    Proposed Standard
RFC 3557ASCII, PDF 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 RTP Payload Format for Enhanced Variable Rate Codecs (EVRC) and Selectable Mode Vocoders (SMV) A. LiJuly 2003Updated by RFC 4788Proposed Standard
RFC 3319ASCII, PDF Dynamic Host Configuration Protocol (DHCPv6) Options for Session Initiation Protocol (SIP) Servers H. Schulzrinne, B. VolzJuly 2003    Proposed Standard
RFC 3525ASCII, PDF Gateway Control Protocol Version 1 C. Groves, Ed., M. Pantaleo, Ed., T. Anderson, Ed., T. Taylor, Ed.June 2003Obsoletes RFC 3015, Obsoleted by RFC 5125, ErrataHistoric (changed from Proposed Standard February 2008)
RFC 3523ASCII, PDF Internet Emergency Preparedness (IEPREP) Telephony Topology Terminology J. PolkApril 2003    Informational
RFC 3524ASCII, PDF Mapping of Media Streams to Resource Reservation Flows G. Camarillo, A. MonradApril 2003    Proposed Standard
RFC 3515ASCII, PDF The Session Initiation Protocol (SIP) Refer Method R. SparksApril 2003Updated by RFC 7647, RFC 8217, ErrataProposed Standard
RFC 3497ASCII, PDF 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 3487ASCII, PDF Requirements for Resource Priority Mechanisms for the Session Initiation Protocol (SIP) H. SchulzrinneFebruary 2003    Informational
RFC 3485ASCII, PDF 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 Compressing the Session Initiation Protocol (SIP) G. CamarilloFebruary 2003Updated by RFC 5049Proposed Standard
RFC 3482ASCII, PDF Number Portability in the Global Switched Telephone Network (GSTN): An Overview M. Foster, T. McGarry, J. YuFebruary 2003    Informational
RFC 3313ASCII, PDFPrivate Session Initiation Protocol (SIP) Extensions for Media Authorization W. Marshall, Ed.January 2003    Informational
RFC 3329ASCII, PDF Security Mechanism Agreement for the Session Initiation Protocol (SIP) J. Arkko, V. Torvinen, G. Camarillo, A. Niemi, T. HaukkaJanuary 2003ErrataProposed Standard
RFC 3388ASCII, PDF Grouping of Media Lines in the Session Description Protocol (SDP) G. Camarillo, G. Eriksson, J. Holler, H. SchulzrinneDecember 2002Obsoleted by RFC 5888Proposed Standard
RFC 3398ASCII, PDF 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 3326ASCII, PDF The Reason Header Field for the Session Initiation Protocol (SIP) H. Schulzrinne, D. Oran, G. CamarilloDecember 2002    Proposed Standard
RFC 3327ASCII, PDF Session Initiation Protocol (SIP) Extension Header Field for Registering Non-Adjacent Contacts D. Willis, B. HoeneisenDecember 2002Updated by RFC 5626, ErrataProposed Standard
RFC 3428ASCII, PDF Session Initiation Protocol (SIP) Extension for Instant Messaging B. Campbell, Ed., J. Rosenberg, H. Schulzrinne, C. Huitema, D. GurleDecember 2002ErrataProposed Standard
RFC 3324ASCII, PDF Short Term Requirements for Network Asserted Identity M. WatsonNovember 2002    Informational
RFC 3323ASCII, PDF A Privacy Mechanism for the Session Initiation Protocol (SIP) J. PetersonNovember 2002ErrataProposed Standard
RFC 3325ASCII, PDF Private Extensions to the Session Initiation Protocol (SIP) for Asserted Identity within Trusted Networks C. Jennings, J. Peterson, M. WatsonNovember 2002Updated by RFC 5876, RFC 8217, ErrataInformational
RFC 3420ASCII, PDF Internet Media Type message/sipfrag R. SparksNovember 2002ErrataProposed Standard
RFC 3311ASCII, PDF The Session Initiation Protocol (SIP) UPDATE Method J. RosenbergOctober 2002    Proposed Standard
RFC 3312ASCII, PS, PDF, PDF with Images Integration of Resource Management and Session Initiation Protocol (SIP) G. Camarillo, Ed., W. Marshall, Ed., J. RosenbergOctober 2002Updated by RFC 4032, RFC 5027, ErrataProposed Standard
RFC 3389ASCII, PDFReal-time Transport Protocol (RTP) Payload for Comfort Noise (CN) R. ZopfSeptember 2002ErrataProposed Standard
RFC 3372 a.k.a. BCP 63

ASCII, PDF Session Initiation Protocol for Telephones (SIP-T): Context and Architectures A. Vemuri, J. PetersonSeptember 2002ErrataBest Current Practice
RFC 3310ASCII, PDF Hypertext Transfer Protocol (HTTP) Digest Authentication Using Authentication and Key Agreement (AKA) A. Niemi, J. Arkko, V. TorvinenSeptember 2002    Informational
RFC 3331ASCII, PDF 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, PDFSignaling 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 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 Dynamic Host Configuration Protocol (DHCP-for-IPv4) Option for Session Initiation Protocol (SIP) Servers H. SchulzrinneAugust 2002    Proposed Standard
RFC 3267ASCII, PDF 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 2002Obsoleted by RFC 4867, ErrataProposed Standard
RFC 3264ASCII, PDF An Offer/Answer Model with Session Description Protocol (SDP) J. Rosenberg, H. SchulzrinneJune 2002Obsoletes RFC 2543, Updated by RFC 6157, ErrataProposed Standard
RFC 3266ASCII, PDF Support for IPv6 in Session Description Protocol (SDP) S. Olson, G. Camarillo, A. B. RoachJune 2002Obsoleted by RFC 4566, Updates RFC 2327, ErrataProposed Standard
RFC 3261ASCII, PDFSIP: Session Initiation Protocol J. Rosenberg, H. Schulzrinne, G. Camarillo, A. Johnston, J. Peterson, R. Sparks, M. Handley, E. SchoolerJune 2002Obsoletes 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, ErrataProposed Standard
RFC 3262ASCII, PDF Reliability of Provisional Responses in Session Initiation Protocol (SIP) J. Rosenberg, H. SchulzrinneJune 2002Obsoletes RFC 2543, ErrataProposed Standard
RFC 3263ASCII, PDF Session Initiation Protocol (SIP): Locating SIP Servers J. Rosenberg, H. SchulzrinneJune 2002Obsoletes RFC 2543, Updated by RFC 7984Proposed Standard
RFC 3265ASCII, PDF Session Initiation Protocol (SIP)-Specific Event Notification A. B. RoachJune 2002Obsoletes RFC 2543, Obsoleted by RFC 6665, Updates RFC 3261, Updated by RFC 5367, RFC 5727, RFC 6446, ErrataProposed Standard
RFC 3259ASCII, PDF A Message Bus for Local Coordination J. Ott, C. Perkins, D. KutscherApril 2002    Informational
RFC 3257ASCII, PDF Stream Control Transmission Protocol Applicability Statement L. CoeneApril 2002    Informational
RFC 3189ASCII, PDF RTP Payload Format for DV (IEC 61834) Video K. Kobayashi, A. Ogawa, S. Casner, C. BormannJanuary 2002Obsoleted by RFC 6469, ErrataProposed Standard
RFC 3190ASCII, PDF 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 3219ASCII, PDF Telephony Routing over IP (TRIP) J. Rosenberg, H. Salama, M. SquireJanuary 2002ErrataProposed Standard
RFC 3204ASCII, PDF MIME media types for ISUP and QSIG Objects E. Zimmerer, J. Peterson, A. Vemuri, L. Ong, F. Audet, M. Watson, M. ZonounDecember 2001Updated by RFC 3459, RFC 5621, ErrataProposed Standard
RFC 3158ASCII, PDF RTP Testing Strategies C. Perkins, J. Rosenberg, H. SchulzrinneAugust 2001    Informational
RFC 3119ASCII, PDF A More Loss-Tolerant RTP Payload Format for MP3 Audio R. FinlaysonJune 2001Obsoleted by RFC 5219, ErrataProposed Standard
RFC 3108ASCII, PDF Conventions for the use of the Session Description Protocol (SDP) for ATM Bearer Connections R. Kumar, M. MostafaMay 2001ErrataProposed Standard
RFC 3057ASCII, PDF ISDN Q.921-User Adaptation Layer K. Morneault, S. Rengasami, M. Kalla, G. SidebottomFebruary 2001Obsoleted by RFC 4233, Updated by RFC 3807Proposed Standard
RFC 3047ASCII, PDF RTP Payload Format for ITU-T Recommendation G.722.1 P. LuthiJanuary 2001Obsoleted by RFC 5577, ErrataProposed Standard
RFC 3054ASCII, PDF Megaco IP Phone Media Gateway Application Profile P. Blatherwick, R. Bell, P. HollandJanuary 2001    Informational
RFC 3009ASCII, PDF Registration of parityfec MIME types J. Rosenberg, H. SchulzrinneNovember 2000Obsoleted by RFC 5109Proposed Standard
RFC 3016ASCII, PDF 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 3015ASCII, PDF Megaco Protocol Version 1.0 F. Cuervo, N. Greene, A. Rayhan, C. Huitema, B. Rosen, J. SegersNovember 2000Obsoletes RFC 2885, RFC 2886, Obsoleted by RFC 3525, ErrataProposed Standard
RFC 2959ASCII, PDF Real-Time Transport Protocol Management Information Base M. Baugher, B. Strahm, I. SuconickOctober 2000    Proposed Standard
RFC 2974ASCII, PDF Session Announcement Protocol M. Handley, C. Perkins, E. WhelanOctober 2000    Experimental
RFC 2976ASCII, PDF The SIP INFO Method S. DonovanOctober 2000Obsoleted by RFC 6086Proposed Standard
RFC 2960ASCII, PDF Stream Control Transmission Protocol R. Stewart, Q. Xie, K. Morneault, C. Sharp, H. Schwarzbauer, T. Taylor, I. Rytina, M. Kalla, L. Zhang, V. PaxsonOctober 2000Obsoleted by RFC 4960, Updated by RFC 3309, ErrataProposed Standard
RFC 2916ASCII, PDF E.164 number and DNS P. FaltstromSeptember 2000Obsoleted by RFC 3761, ErrataProposed Standard
RFC 2885ASCII, PDF 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 Megaco Errata T. TaylorAugust 2000Obsoleted by RFC 3015Historic (changed from Proposed Standard)
RFC 2862ASCII, PDF RTP Payload Format for Real-Time Pointers M. Civanlar, G. CashJune 2000    Proposed Standard
RFC 2871ASCII, PDF A Framework for Telephony Routing over IP J. Rosenberg, H. SchulzrinneJune 2000    Informational
RFC 2793ASCII, PDF RTP Payload for Text Conversation G. HellstromMay 2000Obsoleted by RFC 4103Proposed Standard
RFC 2833ASCII, PDF RTP Payload for DTMF Digits, Telephony Tones and Telephony Signals H. Schulzrinne, S. PetrackMay 2000Obsoleted by RFC 4733, RFC 4734Proposed Standard
RFC 2824ASCII, PDF Call Processing Language Framework and Requirements J. Lennox, H. SchulzrinneMay 2000    Informational
RFC 2805ASCII, PDF Media Gateway Control Protocol Architecture and Requirements N. Greene, M. Ramalho, B. RosenApril 2000    Informational
RFC 2762ASCII, PDF Sampling of the Group Membership in RTP J. Rosenberg, H. SchulzrinneFebruary 2000    Experimental
RFC 2733ASCII, PDF 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 Guidelines for Writers of RTP Payload Format Specifications M. Handley, C. PerkinsDecember 1999Updated by RFC 8088Best Current Practice
RFC 2719ASCII, PDF 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 2543ASCII, PDF 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 2508ASCII, PDF Compressing IP/UDP/RTP Headers for Low-Speed Serial Links S. Casner, V. JacobsonFebruary 1999    Proposed Standard
RFC 2429ASCII, PDF 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 RTP Payload Format for BT.656 Video Encoding D. TynanOctober 1998    Proposed Standard
RFC 2435ASCII, PDF RTP Payload Format for JPEG-compressed Video L. Berc, W. Fenner, R. Frederick, S. McCanne, P. StewartOctober 1998Obsoletes RFC 2035, ErrataProposed Standard
RFC 2354ASCII, PDF Options for Repair of Streaming Media C. Perkins, O. HodsonJune 1998    Informational
RFC 2343ASCII, PDF RTP Payload Format for Bundled MPEG M. Civanlar, G. Cash, B. HaskellMay 1998    Experimental
RFC 2326ASCII, PDF Real Time Streaming Protocol (RTSP) H. Schulzrinne, A. Rao, R. LanphierApril 1998Obsoleted by RFC 7826, ErrataProposed Standard
RFC 2327ASCII, PDF SDP: Session Description Protocol M. Handley, V. JacobsonApril 1998Obsoleted by RFC 4566, Updated by RFC 3266, ErrataProposed Standard
RFC 2250ASCII, PDF RTP Payload Format for MPEG1/MPEG2 Video D. Hoffman, G. Fernando, V. Goyal, M. CivanlarJanuary 1998Obsoletes RFC 2038, ErrataProposed Standard
RFC 2190ASCII, PDF RTP Payload Format for H.263 Video Streams C. ZhuSeptember 1997    Historic (changed from Proposed Standard January 2007)
RFC 2198ASCII, PDF 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 2029ASCII, PDF RTP Payload Format of Sun's CellB Video Encoding M. Speer, D. HoffmanOctober 1996    Proposed Standard
RFC 2032ASCII, PDF RTP Payload Format for H.261 Video Streams T. Turletti, C. HuitemaOctober 1996Obsoleted by RFC 4587Proposed Standard
RFC 2035ASCII, PDF RTP Payload Format for JPEG-compressed Video L. Berc, W. Fenner, R. Frederick, S. McCanneOctober 1996Obsoleted by RFC 2435Proposed Standard
RFC 2038ASCII, PDF RTP Payload Format for MPEG1/MPEG2 Video D. Hoffman, G. Fernando, V. GoyalOctober 1996Obsoleted by RFC 2250Proposed Standard
RFC 1889ASCII, PDF 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 RTP Profile for Audio and Video Conferences with Minimal Control Audio-Video Transport Working Group, H. SchulzrinneJanuary 1996Obsoleted by RFC 3551Proposed Standard