search

freeswitch / sofia-sip

Sofia-SIP is an open-source SIP User-Agent library, compliant with the IETF RFC3261 specification.
GNU Lesser General Public License v2.1
253 stars 173 forks source link

Failure to comply with RFC 3311 #253

Open SouradeepBera opened 3 months ago

SouradeepBera commented 3 months ago

RFC 3311 states that If an UPDATE is received that contains an offer, and the UAS has generated an offer (in an UPDATE, PRACK or INVITE) to which it has not yet received an answer, the UAS MUST reject the UPDATE with a 491 response. FreeSWITCH sends a 500 Overlapping Offer/Answer response.

To Reproduce Using Sipp or any simulation tool, establish a session with FreeSWITCH. Decrease the session-timer and when FreeSWITCH sends a reINVITE, instead of responding to it with a final response, send an UPDATE request.

Expected behavior A 491 response is expected

briankwest commented 3 weeks ago

Attach a SIPP scenario that replicates the issue would go a long way.