GAI-Tronics VoIP Telephone Software Configuration Guide - Manual (Page 7)

GAI-TRONICS
VoIP Telephone Configuration Guide Page 7 of 88
3.1 Operating Sequence.
Typical sequences of events for various model types are explained below:
Handset models (Titan, Commander)
Placing a call
• Lift handset (off hook)
• Dial tone in receiver
• Dial number - confidence tones in receiver
• Call progress tone in receiver (e.g. ring tone)
• Call is answered by remote party
• Normal voice call
• Replace handset (on hook)
• Call terminates.
Receiving a call
• Telephone
rings
• Lift handset (off hook)
• Normal voice call
• Replace handset (on hook)
• Call terminates.
Hands-free models (VR, Help Point)
Placing a call
• Press
button
• Dialling confidence tones heard from speaker (wake and dial)
• Call progress tone heard from speaker (e.g. ring tone)
• Call is answered by remote party
• Normal voice call
• Call terminates. (On hook)
Receiving a call
• Ringing heard from speaker
• Press any button to answer call (off hook)
• Normal voice call
• Call terminates. (On hook)
3.2 Dictionary of terms
Busy tone
A tone played to the user to indicate that a call has failed because the called party is engaged
Call progress tone
One of a number of different tones played to the user to indicate the status of a call. Dial
tone, busy tone and NU tone are all examples of call progress tones.
Confidence tones
Tones played to the user to indicate that dialling is in progress, by imitating DTMF tones used
by analog telephones.
Dial tone
A tone played to the user to indicate that the telephone is ready to dial – ie it is off hook and
waiting for a button to be pressed to initiate a call.
Dialling
Used to describe the process of initiating a call, usually by pressing a memory button or a
series of digit buttons.
DTMF
Standing for “dual tone multi-frequency”, the dialling digit tones produced by a touch-tone
phone. Commonly used for signalling in analogue systems.
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