TYPES OF FORWARD SIGNAL
1.On- hook signal
2.Off- hook signal
3.Pulse dialing
4,Push Button/DTMF
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TYPES OF BACKWARD SIGNAL 1. Dial Tone 2.Ringing Signal 3.Ringing Tone or Ring back Tone 4.Busy Tone signal 5. Number Unobtainable tone.
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1- Ahmad Wafiuddin Bin Ahmad Nordin (09DEP16F1025) 2- Muhammad Azirul Asraf Bin Zainal Abidin (09DEP16F1073) 3- Che Aminur Rashid Bin Mohd... -
Dial Tone Signal -The Dial Tone signal is used to indicate that the switching equipment has recognized that a telephone has ...
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