Christer, >>Where is the behavior of "useful entities" defined ? > >draft-real-world and draft-customer-requirements Of course there will be many problems in real-world. >At the end of the day, those drafts are what really matters to many >people :) I feel your explanation is lacking in concreteness. Pl show your problem concretely. Regards, Shinji _______________________________________________ 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