Abstract: A lockable cradle removably supports a device, such as a radiotelephone. The cradle is configured to be locked and unlocked only upon receipt of authorized locking and unlocking signals. A signal receiver is associated with the cradle for receiving locking signals to lock the cradle to prevent removal of the device from the cradle, and for receiving unlocking signals to unlock the cradle to allow removal of the device from the cradle. A signal generator in communication with the signal receiver generates locking and unlocking signals. The signal generator may generate signals responsive to user input or responsive to input from systems external to the device, such as vehicle security and ignition systems.