I have the task of setting up our phone system to work with 2 companies but 1 set of employees. I have a few task that I would like to see if I can accomplish. I will start with this one.

We have a full PRI T1.

Is it possible to setup the system to show two separate caller id's via separate trunk groups or another way? We would like to be able to make outgoing calls from several stations but choose how we show up on the other end.