Comment #3 on issue 2327 by [email protected]: Mobicents proxyTo fails when proxying to "urn:service:sos" Request-URI
http://code.google.com/p/mobicents/issues/detail?id=2327

Even though it is possible to add URN to the ALLOWED_ADDRESS_SCHEMES of JainSipUtils, I am not sure a URN is routable and should be attempted to be proxied.

According to the RFC5031:
...Since service URNs are not routable, a SIP proxy or user agent has to
   translate the service URN into a routable URI for a location-
   appropriate service provider, such as a SIP URL.  A Location-to-
   Service Translation Protocol (LoST) [LOST] is expected to be used as
   a resolution system for mapping service URNs to URLs based on
   geographic location. ...

So I believe you need to translate URN to a SIP URL before trying to proxy that request.

If thats not your use case, please correct me.


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