> -----Original Message----- > From: [EMAIL PROTECTED] [mailto:asterisk-users- > [EMAIL PROTECTED] On Behalf Of Alex Balashov > Sent: Monday, June 18, 2007 5:27 PM > To: Asterisk Users Mailing List - Non-Commercial Discussion > Subject: Re: [asterisk-users] 180 Ringing with SDP > > On Mon, 18 Jun 2007, Jared Smith wrote: > > > I could be totally off base here, but it's my understanding that a 180 > > is telling Asterisk to generate ringing on it's side, and that a 183 > > (with SDP) would tell Asterisk that the call is progressing and that it > > should play the early media specified in the SDP. I'm sure someone > > there's probably someone on the list who is more intimate with the > > details of SIP that can enlighten us further on the subtle differences > > between the 180 and 183 provisional responses. > > A cursory interpretation of the RFC suggests that 180 Ringing is a > message designed solely to convey ringback, and that it is the payload > of the 183 response that may be used to convey additional details > about the nature of the call's progress. Therefore, a 180 would be an > inappropriate vehicle for early media SDP information.
Tell that to level 3. :) _______________________________________________ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users