> -----Original Message----- > From: Adam Roach [mailto:[EMAIL PROTECTED] > Sent: Thursday, September 27, 2007 12:05 PM > > But, going back to the discussion at hand: Brian and Hadriel seem to be > specifically promoting carrying "appliction/dtmf" in INFO. Since I can > only guess at their motiviations, I'll leave it to them to indicate > whether an "application/vnd.nortelnetworks.digits" or "message/mgcp" > approach would make them happy.
I'm not advocating anything (yet). Eric's draft makes the case that Info is bad for several reasons, one of which is that the message has no context and no negotiation mechanism. I'm saying that's fixable. I am only thinking of dtmf, because that's the most common use case I see of Info (other than sip-t), and it was the main use case example in Eric's draft. At the last IETF meeting the question was raised (by Jonathan I think) along the lines of "is there a real-world reason INFO keeps getting used, as opposed to the already standardized approaches?" I think there are real-world reasons people use Info vs. KPML. As far as I can see, KPML is a rarity. Obviously there's also 2833/4733. Plenty of devices do 2833. Unfortunately, plenty of devices don't too, and there are apps which can't use 2833 architecturally and need dtmf in SIP. -hadriel _______________________________________________ Sip mailing list https://www1.ietf.org/mailman/listinfo/sip This list is for NEW development of the core SIP Protocol Use [EMAIL PROTECTED] for questions on current sip Use [EMAIL PROTECTED] for new developments on the application of sip
