On Aug 20, 2008, at 2:22 PM, Dan Wing wrote:
There are some apparently-legitimate uses of early media,
No there aren't, IMHO.
at least from the perspective of some network operators, to deliver thingslike "Than you for using <operator>", advertisements, colorful ringback(music as ringback), and so on. Brian did a great write-up of many scenarios in the (now expired) draft-stucker-sipping-early-media-coping-03.txt.
Well, if you caveat it that way., then your statement is correct. One might reasonably ask if those operators don't simply have their requirements confused.
My take, however, is that "early media" is a cop-out for coping with a fundamentally broken PSTN-interworking model, coupled with Bad Ideas about charging based on signaling rather than content.
But like forking, this genie has left the bottle, and we have to deal with the consequences of that failing as long as we have SIP 2.0.
--- Dean _______________________________________________ Sip mailing list https://www.ietf.org/mailman/listinfo/sip This list is for NEW development of the core SIP Protocol Use sip-implementors at cs.columbia.edu for questions on current sip Use sipping at ietf.org for new developments on the application of sip