Hi! I am confused a little bit with a multicast support in SIP. Consider, we need to establish a multiparty conference with the use of SIP. If I understand right, we need to have a central mixing unit, having it's own IP address. This address can be taken from external source (such as WEB or e-mail) and is carried in SDP encoded body of the INVITE request or 200 OK responce. Each UA performs a unicast "call" to this address.
If it is correct, what is the role of "maddr" parameter of the Via header field or Request-URI. How does this paramer relate to the multicast conference address, via which media is transmitted/received? Does this parameter contain the same (multicast) address? Can you clarify this point, please? Thank you!!! _______________________________________________ Sip-implementors mailing list [EMAIL PROTECTED] http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
