TIPTEL easyBASE 28 plus, Operating Instructions Manual, Page: 32 / 52

6
Audio signals
Tone
Description of the tones
Pause
Dial tone
(1,2 s tone, 1,2 s pause, repeated after 20 s)
Free tone
(1,0 s tone, 4,0 s pause)
Busy tone
(1,0 s tone, 1,0 s pause)
Call waiting
(0,02 s tone, 6,0 s pause)
Call on hold/MOH
(1,5 s tone, 1,5 s pause, repeated after 30 s)
Failure tone
(0,8 s tone, 0,5 s pause)
Positive acknowledge tone
(1,0 s tone)
Negative acknowledge tone
(0,2 s tone, 0,2 s pause)
DDI tone
(0,02 s tone, 0,02 s pause, repeated after 1,4 s)
Audio signals