A method and apparatus is disclosed for retrofitting to an existing radio,
the radio not having built in over-the-air signaling capabilities. The
device and method include using an interface configured to interface to
the radio and providing electrical signals to the radio. Further, using a
signal generating device that is configured to generate a signal
representative of a communication connection to be set up. And still
further, using a user interface that is configured to receive input from
a user and communicate the input to the signal generating device.