Integrated apparatus and method to combine a wireless fence collar with GPS tracking capability

An integrated apparatus and method is provided for a collar that is configured to operate as part of a wireless fence system that contains and monitors the location of a dog within a containment area defined by the wireless fence system and further configured to provide GPS tracking capability when the dog has escaped from the containment area. As long as the dog remains in the area defined by the wireless fence, the collar operates solely in a wireless fence mode, communicating with the transmitters used as part of the wireless fence system. The GPS tracking function remains "asleep" and is not activated unless and until the dog escapes. Once GPS mode is activated, fence mode is shut down and operation of the GPS enables the dog owner or other individual to receive SMS messages and/or email with information on the dog's location on a smart-phone, tablet or PC.