16 Mar
2008
16 Mar
'08
12:12 a.m.
El Domingo, 16 de Marzo de 2008, Adrian A escribió:
Hi,
I'm setting up multiple OpenSER proxies in different locations to server a
SIP domain. The proxies use a shared location database so they always know
where to send requests to the client when an incoming call hits either one.
The clients have the outbound proxy set to whichever one is closest to
them.
The problem is that because the clients are NAT they
do not receive
the request if the proxy IP that sends it is not the same as the one they
have set as the outbound proxy. The NAT will reject the request because it
does not arrive from the same IP that the connection was established to.
There is a RFC to solve your problem and a module for OpenSer. It's called
PATH:
- SIP Extension Header Field for Registering Non-Adjacent Contacts :
http://tools.ietf.org/html/rfc3327
- http://www.openser.org/docs/modules/1.3.x/path.html
Also you need to set some options in "registrar" module.
Regards.
--
Iñaki Baz Castillo