[Sip] Re-use of Call-ID in the SIP Replaces header

Hi Billy

In section 2.2 of draft-biggs-sip-replaces-01, you specify that "A unique
call-id may be given to the replacement call.".  This seems unnecessarily
weak and could lead to interoperability problems where an application
assumes the re-use of the Call-ID.

If a unique Call-ID is required, as specified in RFC 2543, then why give the
end-point the option to re-use the existing Call-ID?

I suggest that "A unique call-id MUST be given to the replacement call".

Regards

Jonathan
---------------------------
Jonathan Cumming
DC-SIP Product Manager
Voice Networking Group
Data Connection Ltd
Tel:   +44 20 8366 1177          Fax: +44 20 8363 1039
Email: jrc@dataconnection.com    Web: http://www.dataconnection.com

_______________________________________________
Sip mailing list  http://www.ietf.org/mailman/listinfo/sip
This list is for NEW development of the core SIP Protocol
Use sip-implementors@cs.columbia.edu for questions on current sip
Use sipping@ietf.org for new developments on the application of sip