Hi Nitin,
Every SDP with incremented session ( in this case 200 OK) is treated as new negotiation(offer). Whether ACK from other end contains SDP answer? If yes then session version is incremented there also? Regards Sanjiv -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of ext Nitin Kapoor Sent: Wednesday, March 09, 2011 3:03 PM To: Ashish Saxena Cc: [email protected]; [email protected] Subject: Re: [Sip-implementors] [Sip] Different SDP Session Version in 183 &200 OK Hello Ashish, Here is the mline for both the messages. 183: Media Description, name and address (m): audio 43888 RTP/AVP 18 200 OK: Media Description, name and address (m): audio 43888 RTP/AVP 18 Thanks, Nitin Kapoor On Wed, Mar 9, 2011 at 3:25 AM, Ashish Saxena <[email protected]>wrote: > what is the mline of 200OK SDP. > > Regards > Ashish Saxena > (www.aricent.com) > ________________________________________ > From: [email protected] [[email protected]] On Behalf Of Nitin > Kapoor [[email protected]] > Sent: Wednesday, March 09, 2011 12:54 PM > To: [email protected] > Cc: [email protected] > Subject: Re: [Sip] Different SDP Session Version in 183 & 200 OK > > Hello All, > > Could any one please help me out on requested query as below. > > Thanks, > Nitin > > On Tue, Mar 8, 2011 at 4:48 PM, Nitin Kapoor <[email protected] > <mailto:[email protected]>> wrote: > Dear All, > > I have one call scenario where my termination is sending the SDP in 183 as > well as in 200 OK also. As far as i know if we are getting SDP in 183 > session progress then my UAC can ignore the SDP in 200 OK. Also most of the > time SDP is same. > > But here i noticed the slight difference of "Session Version". Here when my > termination is sending 188 Session Progress with SDP is sending the SDP as > below. > > I can see that my Termination is incrementing "Session Version" for SDP > in 183 & 200 OK in same dialog.. > > 183 with SDP > > S_OWNER : o=TLPMSXP2 22660 22660 IN IP4 69.90.230.210 > S_NAME : s=sip call > S_CONNECT : c=IN IP4 69.90.230.217 > TIME : t=0 0 > M_NAME : m=audio 59072 RTP/AVP 18 4 8 98 > > 200 OK with SDP: > > S_OWNER : o=TLPMSXP2 22660 22661 IN IP4 69.90.230.210 > S_NAME : s=sip call > S_CONNECT : c=IN IP4 69.90.230.217 > TIME : t=0 0 > > Could anyone please let me know if that is okay to increment the session > version and if any supported document is there? > > Thanks, > Nitin > > > "DISCLAIMER: This message is proprietary to Aricent and is intended solely > for the use of the individual to whom it is addressed. It may contain > privileged or confidential information and should not be circulated or used > for any purpose other than for what it is intended. If you have received > this message in error, please notify the originator immediately. If you are > not the intended recipient, you are notified that you are strictly > prohibited from using, copying, altering, or disclosing the contents of this > message. Aricent accepts no responsibility for loss or damage arising from > the use of the information transmitted by this email including damage from > virus." > _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors _______________________________________________ Sip mailing list https://www.ietf.org/mailman/listinfo/sip This list is essentially closed and only used for finishing old business. Use [email protected] for questions on how to develop a SIP implementation. Use [email protected] for new developments on the application of sip. Use [email protected] for issues related to maintenance of the core SIP specifications.
