NCU Parameters
D649 124 SM
Address Function Unit Remarks
68050C
PSTN dial tone permissible drop
time
68050D PSTN wait interval (LOW)
-
68050E PSTN wait interval (HIGH)
68050F
PSTN ring-back tone detection
time
20 ms
Detection is disabled if
this contains FF.
680510
PSTN ring-back tone off detection
time
20 ms -
680511
PSTN detection time for silent
period after ring-back tone
detected (LOW)
20 ms -
680512
PSTN detection time for silent
period after ring-back tone
detected (HIGH)
20 ms -
680513
PSTN busy tone frequency upper
limit (high byte)
Hz (BCD)
If both addresses
contain FF(H), tone
detection is disabled.
680514
PSTN busy tone frequency upper
limit (low byte)
680515
PSTN busy tone frequency lower
limit (high byte)
Hz (BCD)
If both addresses
contain FF(H), tone
detection is disabled.
680516
PSTN busy tone frequency lower
limit (low byte)
680517
PABX dial tone frequency upper
limit (high byte)
Hz (BCD)
If both addresses
contain FF(H), tone
detection is disabled.
680518
PABX dial tone frequency upper
limit (low byte)
680519
PABX dial tone frequency lower
limit (high byte)
Hz (BCD)
If both addresses
contain FF(H), tone