Iñaki Baz Castillo writes:
Certainly, I don't know which is the typical "x" value (i.e. Twinkle 1.2 that suports TCP mantains TCP connection for 32 seconds).
twinkle 1.2 has not been released, so i don't know about it. if i remember correctly, outbound internet draft specifies that ua using tcp should keep tcp connection open to its outbound proxies forever and send keepalive CRLF packets every 20 seconds or so. i don't have the draft available and cannot check.
have you tried to set outbound proxy for your twinkle?
-- juha