anyone know what is the frequency and voltage of the telephone dialer?

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anyone know what is the frequency and voltage of the telephone dialer?

when you press the telephone button(i.e. #1) how much frequency and voltage do you get?

2006-08-24 04:16:29 · 2 answers · asked by Anonymous in Education & Reference ➔ Homework Help

2 answers

The pushbuttons on a touchtone phone use a standard called "dual-tone, multi-frequency," or DTMF. With the DTMF standard, each button is assigned two tones and both can vary from button to button. Everything you'll want to know about it is on Wikipedia at the link below.

2006-08-24 04:25:03 · answer #1 · answered by pvreditor 7 · 0⤊ 0⤋

50hz 6vdc

2006-08-24 11:17:43 · answer #2 · answered by Anonymous · 0⤊ 0⤋