Abstract: The present invention is directed to a telephone terminal assembly of the type adapted to receive the standard connector plug of a conventional telephone. The device is characterized by the receptor socket for the telephone plug being snap-fittedly mountable in the terminal, the device including locking means for preventing the snap-fitting components from being outwardly deflected, with resultant possible removal of the socket from the terminal device. Preferably the locking means comprises connector terminals emplanted in the base portion of the terminal assembly.