Re: [Sip-implementors] SIP retransmission timer needed for TCP?

[Paul Kyzivat]

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]


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