On Tue, 2006-05-30 at 13:13 +0100, Mid Nightmare wrote: > Can an UA send 180 Ringing to RE-INVITE message?
That is explicitly permitted. See RFC 3261 section 14.2: A UAS MAY choose not to generate 180 (Ringing) responses for a re- INVITE because UACs do not typically render this information to the user. For the same reason, UASs MAY choose not to use an Alert-Info header field or a body with Content-Disposition "alert" in responses to a re-INVITE. > Is there any scenarion where this could happen? I have never heard of a situation where sending such a 180 would be useful. Dale --- interop.pingtel.com -- the public SIP phone interoperability test server _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
