2010/7/17 Aman Aggarwal <[email protected]>:
> Hi All,
>
> Should UAC assumes port =5060 for a binding received in Contact header of 200
> OK response for REGISTER if it does not contain port? For e.g.
>
> UAC sends Contact header in REGISTER:-
>
> Contact: <sip: [email protected]:5060>;expires=100
> UAC receives Contact header in 200 OK response:-
> Contact: <sip:[email protected]>;expires=100,
> <sip:[email protected]:5062>;expires=10
>
> Now, while matching for correct binding, should UAC assumes port=5060 for
> first binding in Contact header of 200 OK or treat it as a failure?
RFC 3261 - 19.1.4 URI Comparison:
------------------------------------
A URI omitting any component with a default value will not
match a URI explicitly containing that component with its
default value. For instance, a URI omitting the optional port
component will not match a URI explicitly declaring port 5060.
The same is true for the transport-parameter, ttl-parameter,
user-parameter, and method components.
------------------------------------
So technically speaking the response for your question is "no": these
URI's don't match.
However, a SIP URI having an IP as host part it's the same as such SIP
URI with port 5060 (this is not true if the host part would be a
domain/hostname). Anyhow I think that section 19.1.4 has priority.
--
Iñaki Baz Castillo
<[email protected]>
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