Philips Electronics

DTMF/modem/musical-tone generators

Philips Electronics

Programmable multi-tone telephone ringer

Philips Electronics

Pulse and DTMF diallers with redial

Philips Electronics

Caller-ID on Call Waiting (CIDCW) receiver

Philips Electronics

DTMF/modem/musical-tone generators

Philips Electronics

8-bit microcontroller with DTMF generator

Philips Electronics

Programmable multi-tone telephone ringer

Philips Electronics

8-bit microcontroller with DTMF generator

Philips Electronics

Pulse and DTMF diallers with redial

Philips Electronics

8-bit microcontrollers with DTMF generator and 256 bytes EEPROM

Philips Electronics

Programmable multi-tone telephone ringer

Philips Electronics

Pulse and DTMF diallers with redial

Philips Electronics

8-bit microcontroller with DTMF generator, 256 bytes EEPROM and real-time clock

Philips Electronics

Caller-ID on Call Waiting (CIDCW) receiver