RFC 3261, "SIP: Session Initiation Protocol", June 2002

Note: This RFC has been 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 8591, RFC 8760, RFC 8898, RFC 8996

Errata ID: 3875
Status: Held for Document Update
Type: Technical
Publication Format(s) : TEXT
Reported By: Varun Bharadwaj S V
Date Reported: 2014-01-31
Held for Document Update by: Richard Barnes
Date Held: 2014-02-15

Section 17 says:

17 Transcations

 - Additionally, in the case of an INVITE request, the client
transaction is responsible for generating the ACK request for any
final response accepting a 2xx response.

It should say:

17 Transcations

 - Additionally, in the case of an INVITE request, the client
transaction is responsible for generating the ACK request for any
final response excepting a 2xx response.

Notes:

Client transaction should generate the ACK except for 2xx responses.It should not accept & generate the ACK for 2xx response.
For Server transaction RFC says - "In the case of an INVITE transaction, it absorbs the ACK request for any final response excepting a 2xx response."

Report New Errata