Telephone answering machine accessory for urgent calls - responds to urgent call identification code to switch through call to telephone

摘要

The answering machine accessory (5) has a circuit (6) which identifies a codeword in the form of electrical signals in the tone frequency range, to indicate an urgent call, which can be switched through to a telephone (2). Pref an acoustic signal source is operated when the urgent call codeword is identified. Pref. a mode selection switch (1) has a first position in which the telephone (2) is directly coupled to the telephone line, a second position in which an answering machine (3) is coupled to the telephone line when the user is absent and a third position in which an answering machine (4) with the parallel accessory (5) is coupled to the telephone line when the user is at home. ADVANTAGE - Provides override for incoming urgent calls.