[OpenSIPS-Users] Receiving requests via registration TCP connection

[Iñaki Baz Castillo]

2008/10/13 Klaus Darilion <klaus.mailinglists at pernau.at>:
>> But I wonder how "legal/valid" is this in RFC3261. I mean: is really
>> valid for a proxy to send *new* requests to a registered UA via the
>> TCP connection used for UA registration?
>
> Actually - who cares? If there is NAT between the client and the proxy and
> TCP is used, then the proxy has to reuse the TCP connection.
>
> RFC 3261 does not deal with NATs at all. :-)

Sure Klaus, and that's exactly the question: Do usually the UA's allow
this non RFC3261 method for solving NAT? Twinkle does it, but how much
can an admin trust it when using other SIP TCP devives behind a NAT?

Thanks.


-- 
Iñaki Baz Castillo
<ibc at aliax.net>