A method and apparatus for a fast handover of a link with a communications unit between a first and a second wireless communications network includes a receiving device (203, 231) for receiving signals from a first and a second wireless communications network (106, 120), a controller (207) for detecting a condition indicative of initiating a communication over the first network, and a transmitting device (205, 233) operating cooperatively with the receiving device and the controller to operate exclusively on the first wireless communications network and to facilitate registration with the second wireless communications network when the condition is detected.