[SR-Users] Kamailio Infront of Asterisk with remote PBX

[Fred Posner]

Hi Kenny,

This depends on the carriers and scenarios that you may use. I know 
"depends" is a horrible answer, but one of the great aspects of Kamailio 
is the flexibility of the modules.

Some deployments may have a group of Asterisk servers all configured 
similarly for handling calls. With this type of scenario, you would 
benefit from using the dispatcher module.

Many people like to use Kamailio on the public side of their network and 
keep their asterisk servers on the private. This would be an example of 
when to use rtpproxy (in bridge mode).

Some carriers hate seeing the chain of systems on your network (ie the 
asterisk boxes). Sometimes the use of TOPOH helps to integrate with the 
carriers who have chosen their own "interpretations" of RFC for "security."

And there's more...

The bottom line, is that the devil is in the details.

Fred Posner
The Palner Group, Inc.
http://www.palner.com (web)
+1-503-914-0999 (direct)
+1-954-472-2896 (fax)

On 10/23/2014 09:12 AM, Kenny Watson wrote:
> Hi,
>
>
> I have a few asterisk servers providing some basic SIP trunking and routing.
>
> We have remote PBXs trunked onto asterisk which calls come into asterisk
> and are routing down to extensions on the remote PBX via prefix routing.
>
> I’m looking to have a central Kamailio Registrar/Proxy/Loadbalancer
> which Invites come into and are routed out to either SIP phones which
> are registered or to the remote PBX.
>
> I’m looking for some advice as to which modules would be best to use to
> achieve this as the remote PBXs will be dynamically registered rather
> than fixed gateways.
>
> Please let me know what further information would be helpful.
>
> Thanks
>
> Kenny Watson
>