You can contact GTL and ask them to swap the number you have for the number we provide. In almost every case nationwide with GTL, there is a $4.00 per call savings with our numbers. You might also let them know on their last call to your old number about the change - most inmates already know about the service and probably alerted you to contact us.
Regardless, we offer a coupon for a free letter or postcard with the purchase of the line to notify your inmate of the change.