atcomsystems.ca/forum Forums TDM Business Telephone Systems Mitel Telephones & Systems 5000 to Cisco

I have a 5000 that I need to connect to a cisco call manager.
It seems like, we are going to connect them via a PRI.
Cisco ---PRI---5000---telco PRI.

I am not to worried about being able to call extensions on the cisco from the 5000.
The cisco though, is going to need to be able to make outgoing calls through the 5000 where the outgoing PRI is.
On the 5000 side, my thought is to have phantom extensions call forwarded across the PRI linking the 2 systems, for each extension on the cisco.
I don't know much about the cisco side, on how cisco extensions will call extensions on the 5000 or, make outgoing calls through the 5000.
I figure, the cisco people are going to ask me how to set their side up...to have outside calling access through the 5000.
Do any of you ave experience with what I am trying to do here?