RFC 3486:Compressing the Session Initiation Protoc...
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... which network a request comes from, it will be received on a different interface by the proxy. The proxy adds one Record-Route ...
... proxy adds one Record-Route entry for one interface and a second one for the other interface. This way, the proxy ...
... Record-Route entry for one interface and a second one for the other interface. This way, the proxy does not need to rewrite the Record-Route header field ...



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