Hi All, I have one question regarding value of contact header in 200 O.K response for INVITE. RFC 3216 states
" Contact contains a SIP or SIPS URI that represents a direct route to user agent, usually composed of a username at a fully qualified domain name (FQDN). While an FQDN is preferred, many end systems do not have registered domain names, so IP addresses are permitted. " My question is whether contact header should be IP (or FQDN) address of UA, or it can as well be UA's AOR. In the later case, inbound proxy has to perform location service for in-dialog requests (like RE-INVITE) too. Is it possible to use AOR in contact header for the purpose of hiding your IP address. But doesn't VIA header always carries IP address...and so at UAC side we need different approach (like NAT) to hide IP address. Thanks in advance. Regards Prashant _______________________________________________ Sip-implementors mailing list [EMAIL PROTECTED] http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
