HI Sampat ,Brett
Its clear now that BYE is not due to Session timer reason . But i am not sure why MSC server dropping call even if same SDP of 183 response is coming in 180 and 200 ok with incremented version .SDP in 180 and 200 should be ignored and local ringback indication then session accepted indication should be passed to UI respectively. And regular media after getting 200 ok response should be started based on sdp came in 183 response . If there was early media due to 183 sdp then same media ip ports should be kept open for regular media too . Why to send BYE ? Thanks & regards Ankur Bansal On Sun, Feb 23, 2014 at 11:04 PM, Brett Tate <[email protected]> wrote: > > SIP calls are failing due to differing session versions > > received in the SDP of the 183 and 200ok messages. The > > MSC server releases the call immediately due to > > unexpected SDP version received in 200 OK. > > <snip> > > > MSC will release the call. This is normal expected behavior. > > It is not expected behavior per RFC 3261 section 13.2.1. > > "The UAC MUST treat the first session > description it receives as the answer, and MUST ignore any > session descriptions in subsequent responses to the initial > INVITE." > > -- > > > This email is intended solely for the person or entity to which it is > addressed and may contain confidential and/or privileged information. If > you are not the intended recipient and have received this email in error, > please notify BroadSoft, Inc. immediately by replying to this message, and > destroy all copies of this message, along with any attachment, prior to > reading, distributing or copying it. > > _______________________________________________ > Sip-implementors mailing list > [email protected] > https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors > _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
