Hi, Please refer my call scenario
1) User A created a Dialog with User B. [ Call ID: AB, To tag: b1, from tag: a1] 2) User A created another Dialog User C [ Call ID: AC, To tag: c1, from tag: a2] 3) Now User A want to do conference call call with B & C 4) User A then creates a Dialog with a new Conference Server ( which I will refer as D ) 5) User A then sends REFER request to D to to make a call with B. [ here in Refer-To header the replaces parameter contain the details mentioned in Step 1. 6) User D successfully created a dialog with User B with Step 5 details. 7) The call mentioned in Step 1 is not disconnected till now. Means No BYE is sent from neither User A nor User B. So whether the call mentioned in Step 1 will be terminated automatically? If yes then why? 8) Then User A then sends another REFER request to D to to make a call with C. [ here in Refer-To header the replaces parameter contain the details mentioned in Step 2]. 9) User D successfully created a dialog with User C with Step 8 details. 10) Now conference call is working successfully between A, B & C using the conference server. 11) Now User A wants to terminate the B from that conference. So it sends a REFER request to D to send BYE request to User B. But in Refer-To header does not have any Replace parameter or from tag, to tag details Refer-To: sip:use...@abc.com;method=BYE. So whether D will able to send BYE to User B ? If yes, Then How can D will understand for which Dialog the BYE request need to be send since there is no details of the Dialog is mentioned in Refer-To header? Thanks Sourav Dhar Chaudhuri _______________________________________________ Sip-implementors mailing list Sip-implementors@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/sip-implementors