Parameter
(function)
Parameter
Name
Range
Default
Note
941
Minimum
continuous
tone time
10–
99
20 = 2s
If the tone is longer, the intercom
hangs up.
942
Minimum
busy tone or
pause
duration
0–
255
8 = 0.08
s
These parameters control the busy
tone detection. They are used for call
termination and automatic dialling.
943
Maximum
busy tone or
pause
duration
0–
255
70 = 0.7
s
944
Maximum
tone-pause
difference
0–
255
10 = 0.1s
945
Minimum
count of
busy tone
periods
2–9
4
946
Dual tone
detection
setting
0–10
4 = 440
Hz
All continuous, busy and ringing
tones are detected. Dual tones are
detected if one of their components
is between 400 and 500 Hz. If both
components are in this range, set a
lower detection value. Set 0 for 400
Hz and 10 for 500 Hz.
This setting does not affect the
single tone detection, which always
works between 300 and 550 Hz.
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