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TABLE B (Cont)
INCOMING CENTRAL OFFICE TRUNK CALL
CONDITION
RESULTS
CONSOLE A
CONSOLE B
S
T
ACTION
KEY
LAMPS
REMARKS
LAMPS
E
p
DESIG
OPR
CO
RD
CO
RD
TRK
TRK
TRK
TRK
18a
If call transfer-individual feature
is provided -
Audible ringing tone heard
At PBX station -
CD
e
At atnd consoles -
CD
e
Dial tone heard • (See Note).
Audible signal heard
Dial 0
19
Atnd A answers
CO
0
0
e
Audible signal silenced
0
e
TRK
3-Way conversation. satisfactory
Conversation satisfactory between
atnd and calling party
20
Answering atnd releases called party
REL
MO
0
e
At PBX station-
0
e
DEST
Dial tone heard
Call may be extended to another PBX
station or tie trunk
21
At PBX station -
0
e
0
e
Disconnect from call
22b
If no 'other tests are to be performed -
POS
0
e e
Atnd console and CO trunk restored to
e e
Atnd and calling party release
RLS
idle condition
Attendant Dials Code of Busy Station (If Camp-On Not Provided), Busy Tie Trunk, 0, First CO Trunk Group Access Code,
Restricted Code, Unassigned Code, or All Links Busy Condition
23
Atnd dial tone connection
START MO
0
e
Dial tone heard by atnd
0
e
Busy station,
CD
Dial tone silenced
busy tie trunk,
0
Busy tone heard
0 0
24
Atnd dials code
or all links busy
0, or first CO trunk
0
e
Dial tone silenced
0
e
group access code
Busy tone heard
25
Allow busy tone tobe returned for
0
e
Busy tone momentarily silenced as
0
e
. 10 seconds
register resets
-
~Note:
If stutter dial tone feature is provided (AC76B circuit pack in register circuits) dial tone will
consist ofthree short bursts of dial tone followed by continuous dial
tone.a
tit
In
n
...
s
z
VI
'"
W
~
o
...
I
W
o
o
/.----'"
/~
/~
. r r > :
~
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