> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]]On Behalf Of feng zhang
> Sent: Tuesday, August 20, 2002 1:31 AM
> To: [EMAIL PROTECTED]
> Subject: [Sip-implementors] Stateful Proxy
>
>
> Hi All,
>
>    Can a Stateful Proxy do that in the scenario below:
>
>    User A                   Stateful Proxy                   User B
>      |                            |                            |
>      |         BYE                |                            |
>      |--------------------------->|           BYE              |
>      |                            |--------------------------->|
>      |                            |           200 OK           |
>      |                            |<---------------------------|
>      |          200 OK            |                            |
>      |         X <----------------|                            |
>      |          line is down and User A does not receive 200 OK, so
>      |         User A resends BYE |
>      |                            |
>      |         BYE                |
>      |--------------------------->|
>                                    Here, once a stateful proxy
> receives a retransmitted
>                                    BYE, can the proxy sends 200
> OK to User A ?
>                                    or the proxy still delivers
> the BYE to User B, and
>                                    let User B resend 200 OK?
>
>     Thanks a lot to give me an answer!

BYE will be proxied by the stateful proxy towards User B. User B will
generate 481. The proxy may issue its own respone (based on 481) or simply
forward 481 to User A.

Regards,

--victor

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