Patent ID: 8036651

Claim:
A method for enforcing call restrictions, the method comprising the acts of: receiving a call request from a first communication station supported by a first domain for a second communication station supported by a second domain; converting the call request from a format of the first domain into a format of the second domain; determining at a first network element that the first communication station is subject to calling restrictions wherein the call request is allowed or denied according to the geographic location of the second communication station; receiving the geographic location of the second communication station at the first network element when the first network element can determine the geographic location of the second communication station, and sending a message from the first network element to a second network element to determine the geographic location of the second communication station when the first network element cannot determine the geographic location of the second communication station; and allowing the call by the first network element when the first network element can determine the geographic location of the second communication station and by the second network element when the second network element can determine the geographic location of the second communication station when the second communication station is located in a geographic area which is not restricted according to the calling restrictions of the first communication station.