Patent ID: 8873723

Claim:
An apparatus, comprising: a telephone adapter having a unique identifier, the telephone adapter comprising a processor, wherein the unique identifier is an internet protocol address, wherein the telephone adapter is for coupling to an analog telephone and for converting an analog signal to a digital signal; and a receiver for receiving data associated with a current geographic position of the telephone adapter, wherein the data associated with the current geographic position is received from a global positioning system, wherein the processor commands a signal to be transmitted in a session initiation protocol message that includes the current geographic position comprising a latitude and a longitude associated with the current geographic position of the telephone adapter from the telephone adapter to a gateway of a network each time a call is initiated, wherein the signal includes the unique identifier, irrespective of whether the call is a placed call or a received call, wherein the geographic position of the telephone adapter is recorded at an internet protocol network in an internet protocol call detail record and at a terminating public switched telephone network in an automatic message accounting record, wherein the internet protocol call detail record and the automatic message accounting record are used by a billing system to determine a rate center where the telephone adapter is located.