Hi Manoj, On Sun, Jun 3, 2012 at 3:14 AM, Manoj Priyankara <[email protected]>wrote:
> Good day Folks, > > I have a doubt in the use of CSeq in the registration process that involve > 407. Call flow is as follows > > UAC > UAS/Proxy > |-------F1 (REGISTER)------------------------------------------> | > > |<-----F2 (407 With proxy-authenticate)--------------------- | > > |-------F3 (REGISTER with proxy-autorization)-----------> | > > |<-----F4 (200 OK)------------------------------------------------>| > > Must the UAC use the same CSeq value throughout the complete registration > process? (That is both F1 and F3 have the same CSeq) > > Or > > Can the UAC increase the CSeq by one in F3 ?( That is, if CSeq of F1 is 1 > and CSeq of F3 is 2) > UAC MUST increase the CSeq number. For full answer to your question refer to RFC3261, Section 8.1.3.5 Processing 4xx Responses, last paragraph on the Page 45. Regards, Brez _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
