[Asterisk-Users] Asterisk@Home Question

[* KAPIL *]

Greetings!

This is my first post to the list...and I'm kinda' new to Asterisk, so
please be kind....I did a fair amount of Googling but was not able to
find an answer.

I am using Asterisk at Home 0.8

I was wondering if there is a way to select the outbound trunk based
on the extension that making the call.

Here is why I ask. Since I am already running my Asterisk server for
my own use, I also wanted to let friends and family in on the action
but I don't want to pay for their calls. So if I ask them to buy talk
time from a termination provider and then setup a separate trunk for
them, how do I make sure that only their calls use that outbound
trunk?

Any ideas?