Question

Write note on pulse and DTMF dialing.

Answer 1

Answer:

The DTMF Telephone, as its name implied, is based on a concept known as Dual Tone Multi-Frequency (DTMF), Figure 1. It generates a combination of two Tones for each Dialed Digit, and sends the Digits to the Telephone Exchange by Hearable Tones instead of Electrical Pulses as in Decadic Pulse Telephone.

Tone Dialing vs Pulse Dialing. Tone and pulse dialing are two ways of communicating with the central telephone relay to indicate the telephone number that you wish to call. Pulse dialing indicates each digit in the phone number by a series of clicks that corresponds only to that digit.

Answer 2

Answer:

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