I have a norstar mod ICS with a valcom V-2003A for paging. Everything works great but here is the problem. I have the phones programed with one button for paging using ftr 630, the problem is the Valcom needs you to pick a zone (1-3) or 4 for all zones to work. Any way to add that 4 (I want all zones) to the end of the feature code? Or a different way of programing, I want everyone to use just one buuton for paging all sets and the speakers.

The paging port does not send dtmf.

You'll have to use a CO port.

Feature 630:
The 63 is for paging external speakers (only one output) PLUS paging zones through the phone speakers.
The 0 is for paging all zones (phone speakers)
Other phone speaker zones would be 1, 2, or 3.

And as Marv said, you need to use a trunk port to get external zones.