[Asterisk-Users] PBX 'Personalities' ?

[Colin Anderson]

We are running our * server as a virtual PBX for 6 companies. I am having
all of the Allison prompts plus our own custom IVR prompts being re-recorded
for each company, in a different voice (marketing thing) with a different
personality (perky, corporate, earthy) . 

I'm curious if someone could point out a dirty trick to get the voice to
play right, for internal and external callers, depending upon what number
they dialed into, or what organization the user belongs to, without massive
dialplan facelift. 

I'm using the default AMP from-internal context for inside, and
extensions_custom.conf for remote IAX clients. I have partitioned extension
numbers i.e. exten 1XXX belongs to company 1 exten 2XXX belongs to company
2, etc. 

Any hints would help, tia