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Bell 801A PBX Method Of Operation page 59

Attendant and station equipment

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-a
Q
ca
(D
UI
-e
TABLE 0
DIRECT STATION SELECTION CALL
(See 1.04, 1.05, 1.06/ and 2.03)
CONDITION
RESULTS
CONSOLE A
CONSOLE B
S
~--~-------
T
KEY
LAMPS
LAMPS
E
ACTION
REMARKS
ASSOC ASSOC
ASSOC ASSOC
P
DESIG
OPR
DSS
DSS
ATND
DSS
DSS
ATND
STA 1
STA 2
TRK
STA 1
STA 2
TRK
Station to Station Call
- - , - -
- - ~ - - -
1
At PBX station -
0
e e
PBX dial tone heard
0
e e
Remove handset from switchhook
Dial tone silenced
2
Dial code of assigned PBX station
0 0
e
Audible ringing tone heard
0 0
e
At called station -
Ringer heard
f - - - - ~ - ~
3
At called station -
Ringer silenced
0 0
e
Conversation satisfactory between
0 0
e
Answer incoming call
calling and called station party
- - --_
..
_----_.-
4
At calling and called stations-
e e e
e e e
Disconnect from call
Attendant to Station Call
1 - - - - -
.--------------------------~-----------~---------
- - - - - - . - - - - -
~ - - - , - - - -
5
Idle condition
e
e
e
e e e
--~-~------------
t - - - - - - - -
6
Atnd seizes idle atnd trunk
ATND
0
e e
0
e e e
TRK
- - -
- -
DSS
Audible ringing tone heard
7
Atnd calls idle station
lYIO
0
e
0
At called station -
0
e e
1
Ringer heard
- - - _ . _ - -
1 - - - - - - - - - -
t - - - - - - .
1 - - - - - -
1 - - - - -
- - 1 - - - -
f - - - - - - -
r--------
Audible ringing tone silenced
8
At called station -
0
e
0
Ringer silenced
0
e e
Answer incoming call
Conversation satisfactory between
atnd and called party
- -
9
At atnd console and called station -
POS
0
e e e
e
e e
Disconnect from call
RLS
iii
en
~
en
m
n
....
(5
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