UAS
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... client would like to receive subsequent requests within the same
dialog in the UAS->UAC direction compressed, this client SHOULD add
...
...
P2 forwards the INVITE (3) to the UAS. P2 supports compression, but
it does not use it by default. Therefore, it sends the INVITE ...
... UAS
The UAS generates a 200 OK response and sends it to the host in the
topmost Via, which is P2.
...
... Record-Route: P2;comp=sigcomp
Contact: UAS
P2 receives the 200 OK response. P2 Record-Routed, so it inspects
...
... P2 receives the 200 OK response. P2 Record-Routed, so it inspects
the Route set for this dialog. For requests from the UAS towards the
UAC (the opposite direction than the first INVITE ...