We are currently running an IPRC with 2 extensions in another state. But we are now changing to a new T1 for our data.

I am trying to figure out how to change the remote phone setting. to the new network with minimal interuption of the remote user.

There is a field on the IPRC card that says overwrite local settings, if you program the new static IPs in the boxes and then check off overwrite local settings it should configure the phone with the new settings.