Re: [Sip-implementors] SDP offer reject, fallback to previous state

2016-08-09 Thread Brett Tate
> I've been unable to find an SDP version reference though... See RFC 4566 section 5.2 which indicates that the origin line is globally unique identifier. Because of this, it would be invalid to indicate version 2 again for the session if the SDP has changed. _

Re: [Sip-implementors] SDP offer reject, fallback to previous state

2016-08-08 Thread My Gmail
Whenever offer send as SDP and it is different then previous SDP then version must increase by 1 irrespective it is accepted or rejected. Thanks and Regards Dheeraj Kumar Sent from iPhone > On 08-Aug-2016, at 11:15 PM, Manolis Katsidoniotis wrote: > > Hello > > Haven't been able to find a

Re: [Sip-implementors] SDP offer reject, fallback to previous state

2016-08-08 Thread Manolis Katsidoniotis
thanks I'll try that argument with them :-) On Mon, Aug 8, 2016 at 5:22 PM Roman Shpount wrote: > Hi All: > > This is all based on https://tools.ietf.org/html/rfc3264#section-8 > > First it states: *We refer to the last SDP provided as the "previous > SDP".* > This clearly states last SDP sent ,

Re: [Sip-implementors] SDP offer reject, fallback to previous state

2016-08-08 Thread Roman Shpount
Hi All: This is all based on https://tools.ietf.org/html/rfc3264#section-8 First it states: *We refer to the last SDP provided as the "previous SDP".* This clearly states last SDP sent , not the last SDP accepted. Then., later it states: *When issuing an offer that modifies the session, the "o="

Re: [Sip-implementors] SDP offer reject, fallback to previous state

2016-08-08 Thread Paul Kyzivat
On 8/8/16 4:32 PM, Manolis Katsidoniotis wrote: Thanks for the fast answer! I've been unable to find an SDP version reference though... For instance this looks very vague ... Therefore, session parameters in the offer/answer exchange SHOULD be as close to those in the pre-re-INVITE state

Re: [Sip-implementors] SDP offer reject, fallback to previous state

2016-08-08 Thread Manolis Katsidoniotis
Thanks for the fast answer! I've been unable to find an SDP version reference though... For instance this looks very vague ... Therefore, session parameters in the offer/answer exchange SHOULD be as close to those in the pre-re-INVITE state as possible. As far as I know the session versio

Re: [Sip-implementors] SDP offer reject, fallback to previous state

2016-08-08 Thread Volkan Hatem
Rfc6141 might help. > On 08 Aug 2016, at 20:45, Manolis Katsidoniotis wrote: > > Hello > > Haven't been able to find a reference to this scenario. > > (convert to Courier or "fixed width font" to see properly) > UEA UEB > | -> | > | INV SDP offer

[Sip-implementors] SDP offer reject, fallback to previous state

2016-08-08 Thread Manolis Katsidoniotis
Hello Haven't been able to find a reference to this scenario. (convert to Courier or "fixed width font" to see properly) UEA UEB | -> | | INV SDP offer | | version 1| || | <- | |2