Tones And Signals - Aastra Dialog 4425 IP Vision User Manual

Dial tone
Special dial tone
Ring tone or queue tone
Busy tone
Congestion tone
Number unobtainable tone
Call waiting tone
or verification tone
Intrusion tone
Conference tone
Hold tone
Connection in progress tone
Dialog 4425 IP Vision

Tones and signals

The following different tones and signals are sent from the
telephone system to your phone.
Tone characteristics
The tones shown in this section are the most used tones
worldwide. Many markets use a differing tone for one or more
situations.
every 15 seconds (to all parties)
Description
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