Chapter 7. Specifications
Section
3004nstallation
Tone Characteristics
Table 7-17. Tone Plan
Tone Name
Frequency
Timing (seconds)
CO Call Tones
CO incoming call
550/400
Hz at 16 Hz Programmable
Hold recall
550/400
Hz at 16 Hz
0.5
on/35
off
Transfer recall
550/400
Hz at 16 Hz
0.5
on/35
off
Trunk queuing
550/400
Hz at 16 Hz 0.5 on/O.5 off/O.5
on/2.5
off
CO
ofiook
signal
550 Hz
1 on/7 off
Internal Tones (Key Phones)
Dial tone
400 Hz
Continuous
CO incoming call
550 Hz
1 on/3 off (Prior to CPC-B 3.1)
Programmable (CPC-AII and CPC-B 3.1 or
higher)
Callback 400 Hz
1 on/3 off
Busy
400 Hz
0.5
on/O.5
off
Busy override
400 Hz
0.25 on/O.25 off/O.25 on
Splash
550 Hz
0.5 on
Error
400 Hz
0.5 on/O.5 off
Reminder call
550 Hz
4 on/l off/4 on/l
off/4on
1 off/4 on/silence
Call waiting
550 Hz
0.25 on/O.25 off/O.25 on/7.25 off
Key press
1kHz
Duration of the key press
Internal Tones
(SLTs)
CO/Station ringing
20 Hz
1 on/3 off
Hold recall Callback
Transfer (Prior to
20 Hz
0.5
on/3.5
off
CPC-B 2.11)
Transfer (CPC-AII
20 Hz
Programmable
and CPC-B 2.11 or
higher)
7-16 DES Manual
-
issued
6/l/95
DBS-70-300
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