vijay wrote:
> Hi,
>
> a snippet from 3311:
> If a UA receives a non-2xx final response to a UPDATE, he session
> parameters MUST remain unchanged, as if no UPDATE had been issued.
> Note that,
> as stated in Section 12.2.1 of RFC 3261 [1], if the non-2xx final
> response is a
> 481 (Call/Transaction Does Not Exist), or a 408 (Request Timeout), or no
> response at all is received for the UPDATE (that is, a timeout is
> returned by
> the UPDATE client transaction), the UAC will terminate the dialog.
>
>
> If we receive 404 response for the subsequent session refresh
> requests, do we need to terminate the session by sending BYE?
>
> Please clarify
See RFC 5057. The 404 indicates that the dialog itself is gone away.
You should send a BYE to be sure, but there is a good chance that it
will also fail.
Paul
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