Abstract: An electronic telephone apparatus employs a pushbutton key array having multilevel switch contacts and a manually and automatically controlled signalling arrangement for output signalling in both the dial pulse and DTMF (Dual Tone Multifrequency) tone signalling formats. The signalling arrangement includes a memory storage and an automatic sequential dialing circuit to transmit various predetermined combinations of dial pulse trains of one or more digits and tone sequences useful in multiple PABX (Private Automatic Branch Exchange) networks, long haul microwave communication links between distant points and redialing of "found-busy" numbers.