An addition to the use case #5 'troubleshooting': I see CDRs as another point. With changing Call-IDs it becomes harder to prevent double-billing. Hendrik -- Hendrik Scholz <hs@xxxxxxx> _______________________________________________ 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