Christian Stredicke wrote:
>
> Is there any particular reason why Record-Route/Route is not allowed for
> REGISTER requests?
The semantics are different. Record-Route is bound to a dialog. REGISTER
does not establish a dialog. You can use Route with REGISTER, however.
>
> If the proxy registers the user not only with a Contact, but with also a
> Route, implementing a NAT gateway would be much esier: It would just be
> a
> stateless proxy that puts its Record-Route in there.
You are looking for the Path header. See:
http://www.ietf.org/internet-drafts/draft-willis-sip-path-01.txt
There are countless messages in the sip list archives on the difference
between this and record-route.
-Jonathan R.
--
Jonathan D. Rosenberg, Ph.D. 72 Eagle Rock Avenue
Chief Scientist First Floor
dynamicsoft East Hanover, NJ 07936
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