[Asterisk-Users] Re: Connecting 20+ asterisk servers together

[Chris A. Icide]

I would think you could try something like this to at least reduce the 
management nightmare.

Configure 1 (or more for redundancy sake) route servers (dual-power supply, 
raid 1, etc.) boxes, and maintain routing information on these.  These 
servers should know exactly how to get to all the end UA's in your system.

Each route server would have an IAX entry for all the other asterisk 
servers in your network.  When a call is made, route it to the central 
route server(s) which will then pass it to the correct far end.  Make sure 
you do not disable IAX transfer, and the central server *should* create the 
connection (including trunking?) and then step out of the path, allowing 
the originating server a direct IAX connection to the terminating server 
without having to maintain a huge full mesh of IAX entries on each server.

In this model if you add more servers on the edge, you only need update the 
central servers.

Of course the downside of this is what happens if you lose the central 
servers.....

I've not tried this myself, but it should work.

-Chris