[asterisk-users] is dundi worth pursuing in this situation?

[Erik Anderson]

At work, I have 4 branch offices at which I've deployed asterisk.
Call termination/origination at each branch office is handled either
through a frac PRI or 3rd party SIP provider.  Soon, I'll be replacing
the legacy PBX at our HQ with asterisk.

Each branch office has between 3 and 20 employees, each with their own
extension and DID, and at headquarters, we have about 70 people, again
each with their own extensions and DID.

Handling local and LD calls from all the offices isn't a big deal -
just normal call routing for that.  My main question is what to do
with calls between the offices.  Each branch is connected back to HQ
with a persistant VPN tunnel - I've tested IAX2 traffic over these
tunnels before, and things work great.  Since this works fairly well,
I envision using IAX trunks for all intra-office calls.  So - in this
situation, would it be easier to just manage the office dialplan(s)
and call routing manually, or would it be worth it to set up dundi for
extension discovery?

Thanks!

-- 
Erik Anderson
http://andersonfam.org