On Tue, Mar 3, 2009 at 9:07 AM, Avasarala Ranjit-A20990<ranjit@xxxxxxxxxxxx> wrote:> Consider the scenario>> Alice makes call to Bob. So Bob receives the INVITE from Alice. Now if Bob does not want to answer the call from Alice and instead wishes to block Alice, Bob can send a CANCEL with Reason header with protocol value as "block". Similarly say John calls Bob and Bob answers the call and after speaking realizes that John is a telemarketer or someone with whom Bob does not want to speak in future. Then Bob can send BYE and along with send Reason header with protocol value as "block".>> So this way a particular caller identity can be blocked either during the ringing or call termination phase. I wouldn't use a CANCEL here, simply reject the call with 4xx-- Victor Pascual Ávila_______________________________________________Sipping mailing list https://www.ietf.org/mailman/listinfo/sippingThis list is for NEW development of the application of SIPUse sip-implementors@xxxxxxxxxxxxxxx for questions on current sipUse sip@xxxxxxxx for new developments of core SIP