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 things
like "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
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