MM711 and MM716 modules connected to Off Premise Extension

[resf]

I have a customer with Off Premise Extension about 3 miles away with AT&T as the carrier. this extension works great on an analog TN board in a G650 cabinet. I moved it to an analog port on a MM711 and MM716 and the extension doesn't ring at the other end. I reversed the cross connect polarity of tip and ring, also changed the off premise option to yes in the station form. Neither one fixed the issue. Are MM711 and MM716 modules generate compatible with Off premise extensions?

thank you,
Rudy
United Telecom

 

[joe2938]

too much distance for those cards, the g650 cards have more gain