Hi, > 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. > > [Gao] I think it is violation of RFC3261, which has the semantics of > rejecting. we cannot violate any RFC because we are not specifying *any* new rules for media control. > > 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. > > [Gao] Issue a new re-INVITE or UPDATE, would have the drawback I > mentioned. > That is manual rollback called in folk. As I said in the paragraph above, we need to find a solution that does not require a new re-INVITE or UPDATE most of the time. However, when the user preferences are not the default, there is no way around it. You will need the new offer/answer exchange. > > > 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. > > [Gao] But A and B can still using it illegal. if a stream is rejected, it will not be in use. We do not indent to change that rule anywhere. 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
