Hi all - I've encountered an oddity that I'm not too sure how exactly it should be handled and was hoping for a second opinion. Here's the scenario:
PBX --INVITE;branch=A--> Service Provider PBX <-- 100 Trying;branch=A -- Service Provider PBX <-- 183 Session Progress;branch=A-- Service Provider PBX --OPTIONS;branch=B--> Service Provider PBX <--200-OK/OPTIONS;branch=B-- Service Provider PBX <--200-OK/INVITE;branch=B-- Service Provider In short, during a call setup, an OPTIONS ping is generated, with the same From/To numbers as the INVITE, but with a different branch id. My question is should that branch-id be different on the OPTIONS ping out, or should that be the same as the INVITE? The service provider device is sending the 200/OK to the INVITE with the branch-id from the OPTIONS ping rather than the INVITE, which seems suspect. I've not been able to find a good lead in the RFCs yet. Any insights, thoughts, or leads are greatly appreciated. Thanks in advance for your time. -- Giovanni Navarrette brutw...@gmail.com _______________________________________________ Sip-implementors mailing list Sip-implementors@lists.cs.columbia.edu https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
