Thanks Steve!

To expand (after some research) in case anyone else needs it.

The Network Calling Number setting in the station assignment appears to only be for the Strata Net ISDN Network.

So I went to Trunk>Calling Number and there are two parts:
(first need to choose the OLG group - we have two)

321 Calling Number Identification - This is the default Caller ID number (provided your service provider is not overriding it. Ours was but I had them turn it off (BTN Override per Comcast). If you don't put anything in 322 (below) this is what will be sent out for all outgoing calls.

322 CNIS Presentation and Special Number Assignment

• 01 Source Type (pick Primary DN)

• 02 Source Number (enter the Primary DN -- extension) or you can click on List and pick from a list

• 03 Special Number Assignments -- This is the Caller ID number that you want to pulse out. Note that it appears that you only want the 7-digit number. It pulls the area code from 321 above