RFC 4028, "Session Timers in the Session Initiation Protocol (SIP)", April 2005

Errata ID: 632
Status: Verified
Type: Technical
Publication Format(s) : TEXT
Reported By: Ervin Wittner
Date Reported: 2007-06-25
Verifier Name: Cullen Jennings
Date Verified: 2009-01-08

Section 9 says:

If the incoming request contains a Supported header field with a
value 'timer' but does not contain a Session-Expires header, it means
that the UAS is indicating support for timers but is not requesting
one.

It should say:

If the incoming request contains a Supported header field with a
value 'timer' but does not contain a Session-Expires header, it means
that the UAC is indicating support for timers but is not requesting
one.

Notes:

I believe that in the first sentence, the reference to "...the UAS is
indicating support...." should read "... the UAC is indicating
support..."

Report New Errata