[Sip] questions about drat-bjorkner-serviceroute-00

Hi All,

I have some questions regarding the draft
draft-bjorkner-serviceroute-00.txt.

I think it is a good thing to route requests according to the service a
user is subscribed for, but still I am confused in how the service-route
header is used.

1. "The service-route header should only be inserted in the first
request in a call leg." (4.1, page 4) Is it not possible that you first
contact the callee before deciding on which service to use?

2. "If a request contians both route headers and service-route headers
the route headers MUST be used for request routing." (4.1, page 5)
Indeed, if the route headers are used for request routing, it is not
useful to insert service-route headers in the subsequent requests.
However, I have the feeling that service-route headers can be useful in
subsequent requests. 

Comments?

Thanks,
Tim.
-- 
Timothy Soetens
_________________________________________

From the Network Strategy Group @ Alcatel

Tel. +32-3-240.42.11
Fax  +32-3-240.48.88

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