SECTION
51 8-411-100
OK
Flash dial tone
TABLE M
A UTOMATIC CALLBA CK
(A CB K )
Busytone received when IC station is
called
I
Flash switchhook
Dial
09
IC dial tone
OK
Acknowledgment tone
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BSP 518-41 1-100-i01 1978-08-32.jp
Dial code of busy station
When called station becomes
idle, system will ring originating
station then called station.
Error tone -
1.
ACBK already originated by station.
2.
Invalid procedure - station must reattempt
feature activation.
Busy tone -
1 .
Memory unavailable.
FAILURE
Error tone -
1.
Code of nonworking station dialed.
2.
Busy station is in DND
3.
Nonstation code dialed
Audible ringback -
1.
Busy station became idle during feature
activation. Call completed in normal
manner.