i am not able to locate this information in the RFCs.
can anybody please point out where it is mentioned, that a
stateless proxy should not use a unreliable transport for
outgoing messages if the incoming message is on a reliable
transport?

thanks,
ravi.

-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of Paul Kyzivat
Sent: Wednesday, January 08, 2003 1:49 AM
To: Duffy Boyle
Cc: [EMAIL PROTECTED]
Subject: Re: [Sip-implementors] SIP retransmission timer needed for TCP?


I believe the answer is that a stateless proxy must not forward from TCP to UDP. It requires a transaction stateful proxy precisely so it can be responsible for the retransmissions.

Paul

Duffy Boyle wrote:
> Dear Implementors,
> If a SIP UA sends a message to a stateless proxy using TCP, and
> the proxy forwards to the destination UA with UDP, and the
> message gets lost on the UDP path, who sets the message
> retransmission timer to resend the message?
> > I'd guess it's not in the stateless proxy, so it would have to
> be in the originating UA, but RFC3261 speaks to these timers
> only for UDP transport.
> > Thanks in advance for guidance,
> > Duffy Boyle
> [EMAIL PROTECTED]
> > > _______________________________________________
> Sip-implementors mailing list
> [EMAIL PROTECTED]
> http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
>

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