Hi,
> And mixing the ringback tone into the stream that's ultimately going to carry > voice is not an option? well, after the user agent receives the 200 OK with a new port it should stop sending/receiving on the old port and use the new port from 200 OK because the 183 Session Progress in only a early media connection which "went away" after the session is completly up! > Remember, each network address change brings a potential NAT traversal > process, with associated potential for breakage. > So far I haven't seen any PBX changing the SDP between early and complete > phases. Also, as Pekka has mentioned, it hits some really weird SOA-in-SIP > scenarios; I'm not sure it's even allowed by the specs. hehe, we have such a Siemenes Hipath Gateway which use different ports for Session Progress and 200 OK *G* Best regards, Bernhard Suttner ------------------------------------------------------------------------- Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://sourceforge.net/services/buy/index.php _______________________________________________ Sofia-sip-devel mailing list Sofia-sip-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/sofia-sip-devel