Hi, > 1. Make session state just out of signal control. no, we are not specifying any new rules about how to control the media state. To decide the media state in use at any given point, we are just using the traditional rules we use to control media. No new rules here. Therefore, your point above is not valid. > 2. Is the session state the one user prefer? we need to decide what will be the default media state after the re-INVITE fails. The idea is that we define a default behavior that is in line with what the user prefers *most of the time*. Obviously, there will be cases where the user prefers something else because the default behavior cannot possibly cover all cases. In those cases where the user prefers something else, the user can issue a new re-INVITE or UPDATE. > If A want to use vedio, and B reject it. But A and B can use vedio and > say that they have rejected using it by signal, and operater can not > bill it. If B rejects the video stream the operator should not be charging for it because there is no video stream to charge for. Cheers, Gonzalo _______________________________________________ Sipping mailing list https://www.ietf.org/mailman/listinfo/sipping This list is for NEW development of the application of SIP Use sip-implementors@xxxxxxxxxxxxxxx for questions on current sip Use sip@xxxxxxxx for new developments of core SIP
