Thanks Ben I have few more questions on this topic, but as u pointed I will continue the discussion on sip-implementers list.
________________________________ From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of BONNAERENS Ben Sent: Thursday, December 04, 2008 3:18 PM To: [email protected] Subject: Re: [Sip] Resubmitted INVITE request for 421 and 420 Hi, RFC3261 8.1.3.5 is pretty clear: " In all of the above cases, the request is retried by creating a new request with the appropriate modifications. This new request constitutes a new transaction and SHOULD have the same value of the Call-ID, To, and From of the previous request, but the CSeq should contain a new sequence number that is one higher than the previous." Best regards, Ben. Ps: Ask questions about the existing protocol at the sip-implementors list ________________________________ From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Vavilapalli Srikanth-A19563 Sent: donderdag 4 december 2008 10:36 To: [email protected] Subject: [Sip] Resubmitted INVITE request for 421 and 420 Hi I have a doubt related to resubmitting of the INVITE request for 421/420. Can any one please clarify me? While re-submitting a INVITE request upon receiving a 421 Extension Required/420 Bad Extension, Are there any recommendation of using the same Call-Id/From tag of original INVITE request in the resubmitted request? If so, is there any reason/use-case for such recommendation? Regards Srikanth
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