NCU PARAMETERS 30 November, 1999
4-40
Address Function Unit Remarks
807F33
Busy tone signal state time tolerance for all ranges, and number of cycles
required for detection (a setting of 4 cycles means that ON-OFF-ON or OFF-
ON-OFF must be detected twice).
Tolerance (±)
Bit 1 0
0 0 75% Bits 2 and 3 must always
0 1 50% be kept at 0.
1 0 25%
1 1 12.5%
Bits 7, 6, 5, 4 - number of cycles required for cadence detection
807F34 International dial tone frequency
upper limit (high byte)
807F35 International dial tone frequency
upper limit (low byte)
Hz
(BCD)
If both addresses contain
FF(H), tone detection is
disabled.
807F36
International dial tone frequency
lower limit (high byte)
807F37 International dial tone frequency
lower limit (low byte)
Hz
(BCD)
If both addresses contain
FF(H), tone detection is
disabled.
807F38
International dial tone detection
time
807F39 International dial tone reset time
(low)
807F3A International dial tone reset time
(high)
807F3B
International dial tone continuous
tone time
807F3C International dial tone permissible
drop time
If 807F38 contains FF, the
machine pauses for the
pause time (807F3D /
807F3E).
See Note 3 (Belgium).
807F3D International dial wait interval (low)
807F3E International dial wait interval (high)
20 ms
807F3F
Country dial tone upper frequency
limit (high)
807F40 Country dial tone upper frequency
limit (low)
If both addresses contain
FF(H), tone detection is
disabled.
807F41 Country dial tone lower frequency
limit (high)
807F42
Country dial tone lower frequency
limit (low)
Hz
(BCD)
If both addresses contain
FF(H), tone detection is
disabled.
807F43 Country dial tone detection time 20 ms
807F44 Country dial tone reset time (low)
807F45 Country dial tone reset time (high)
If 807F43 contains FF, the
machine pauses for the
pause time (807F48 /
807F49).
807F46
Country dial tone continuous tone
time
807F47 Country dial tone permissible drop
time
807F48 Country dial wait interval (low)