Hi,
I'd also note server and client behaviour is a subset of UA server
and UA client behaviour, a stateful proxy need only be transaction
stateful.
James
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]]On Behalf Of
> Ajit Kalele
> Sent: 12 October 2001 13:16
> To: Shailendra Singh
> Cc: [EMAIL PROTECTED]
> Subject: [Sip-implementors] Re: [Sip-implementors]FSM at Proxy???
>
>
> Hello Shailendra,
>
> The proxy maintaining Call FSM must insert Record-route
> Header in the
> request & response.
>
> - Ajit
>
> Shailendra Singh wrote:
>
> > Hi Everyone,
> > I have a query.
> > Does a SIP proxy server maintain a full Call FSM
> for the client
> > and server. I understand that a Transaction FSM would be
> maintained for
> > both the client and server in a proxy server, But since
> there is no
> > specific return path for responses how could a call state
> machine be
> > maintained.
> > I am confused as the RFC 2543 states that the
> proxy maintains a
> > server state machine as well as client state machine for
> generating
> > requests and recieving responses.
> >
> > Is the following valid---
> > -Proxy forwards an INVITE,REGISTER, OPTIONS etc
> requests and
> > goes into a call initiated state..
> > -To release the call a BYE transaction has to be
> successfull but
> > since a BYE may take a completely different route(via
> different set of
> > proxies) and because of this the Proxy FSM might never
> move to a Call
> > release state.
> >
> > Thanks,
> > Shail...
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>
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