2010/10/21 Juha Heinanen jh@tutpro.com:
method is part of first line and could be used for routing, but never Event header, because then you are immediately in the situation that where innovation is killed when proxy has not heard of event "foo".
Then how do you get the proxy routing "Event: presence" PUBLISH to a server-1 and "Event: dialog" PUBLISH to server-2?
Also, innovation would also be killed in case the proxy receives an initial request with unknown SIP method. This is: a proxy knows what to do with an INVITE, REGISTER, OPTIONS... but what should it do with CHICKEN? depending of the nature of the method, it's important/required that the proxy knows it to route it properly.