Hi Venkatesh , If you receive SDP answer in 18x it is a good practice to listen for the media , because the other end may be playing back "early media" to you and may even want to do in band digit collection etc ...
Specificaly if the 180 Ringing(instead of say 183) which carries the SDP , I have seen implementation which either play a local splash ringback followed by the media specified in the SDP(danger of clipping) or do not play the ringback at all but depend on the remote media to play it... Regards , Sayan -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Venkatesh Venkataramanan Sent: Thursday, November 25, 2004 5:44 AM To: [EMAIL PROTECTED] Subject: [Sip-implementors] Handling SDP in 180 response. Hi: Sorry if this question has been answered already in the mailing list (but I could not find any references) but here is the question. I wanted to know is if there are any guidelines/recommendations for a UA as to how SDP in a 180 response is to be handled/interpreted as regards providing local ringback? Is the recommended behavior that the UA not generate any local ring back and look for any media from the far end? Or is it considered a good practice to ignore this SDP until a 2xx is received and continue to provide local ring back? Regards, Venkatesh _______________________________________________ Sip-implementors mailing list [EMAIL PROTECTED] http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors _______________________________________________ Sip-implementors mailing list [EMAIL PROTECTED] http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
