Hi Expert, I need one info for the following below SIP REGISTER scenario.
Step 1) UE sent REGISTER with CSeq =1 CallID=100001 Step 2) 401 with CSeq =1 CallID=100001 Step 3) After challenge UE sent the REGISTER with CSeq =2 CallID=100001 Step 4 ) 200OK with same CSeq =2 CallID=100001 which is expected . Call Continue... Everything is OK Step 5) UE sent DE-REGISTRATION with CSeq =3 CallID=100001 Step 6) 200OK for DE-REGISTRATION with same CSeq =3 CallID=100001 which is expected . Here all contacts are removed (all AOR binding clear) Step 7) UE now sent another fresh REGISTER request with CSeq =1 CallID=100002 Step 8) UAS is now rejecting continuously the REGISTER. So the question is in Step 7 ) the call id now changed to 100002 and as per RFC 3261 it says The first question is, It says 8.1.1.4 Call-ID The Call-ID header field acts as a unique identifier to group together a series of messages. It MUST be the same for all requests and responses sent by either UA in a dialogue. *It SHOULD be the same in each registration from a UA.* *Best Regards* *Rakesh Kumar Mohanty* _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
