Address Function Unit Remarks
807F2A
(00672A)
Busy tone ON time: range 1 20 ms
807F2B
(00672B)
Busy tone OFF time: range 1
807F2C
(00672C)
Busy tone ON time: range 2
807F2D
(00672D)
Busy tone OFF time: range 2
807F2E
(00672E)
Busy tone ON time: range 3
807F2F
(00672F)
Busy tone OFF time: range 3
807F30
(006730)
Busy tone ON time: range 4
807F31
(006731)
Busy tone OFF time: range 4
807F32
(006732)
Busy tone continuous tone
detection time
807F33
(006733)
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
(006734)
International dial tone frequency
range (high byte)
Hz (BCD) See Note 2.
807F35
(006735)
International dial tone frequency
range (low byte)
807F36
(006736)
Not used Do not change the factory
settings
807F37
(006737)
SERVICE TABLES AND PROCEDURES August 7th, 1995
NCU PARAMETERS
4-36
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