NCU PARAMETERS 30 November, 1999
4-42
Address Function Unit Remarks
807F5E
Progress tone detection level, and
cadence detection enable flags
Bit 7 Bit 6 Bit 5 dBm
0 0 0 -25.0
0 0 1 -35.0
0 1 0 -30.0
1 0 0 -40.0
1 1 0 -49.0
Bits 2, 0 - See Note 3.
807F5F
to
807F64
Not used Do not change these
settings.
807F65 Inter-city dial prefix (high) BCD For a code of 0:
807F66 Inter-city dial prefix (low) BCD 807F65 - FF
807F66 - F0
807F67
to
807F68
Not used
Do not change these
settings.
807F69 Distinctive ring Hex 00(H): OFF, 01(H): ON
807F6A Distinctive ring minimum off time 1ms
807F6B Distinctive ring maximum one cycle
time
20 ms
± 20 ms
807F72
Acceptable ringing signal
frequency: range 1, upper limit
Function 08 (parameter
02).
807F73 Acceptable ringing signal
frequency: range 1, lower limit
Function 08 (parameter
03).
807F74
Acceptable ringing signal
frequency: range 2, upper limit
Function 08 (parameter
04).
807F75 Acceptable ringing signal
frequency: range 2, lower limit
1000/ N
(Hz)
Function 08 (parameter
05).
807F76 Number or rings until a call is
detected
1 Function 08 (parameter
06).
807F77
Minimum required length of the first
ring
20 ms
See Note 5. Function 09
(parameter 07).
807F78 Minimum required length of the
second and subsequent rings
20 ms Function 08 (parameter
08).
807F79
Ringing signal detection reset time
(low)
Function 08 (parameter
09).
807F7A Ringing signal detection reset time
(high)
20 ms
Function 08 (parameter
10).
807F7B
to
807F80
Not used Do not change these
settings.
807F81 Interval between dialing the last
digit and switching the Oh relay
over to the external telephone
when dialing from the operation
panel in handset mode.
20 ms Factory setting: 500 ms
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