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Q
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TABLE B (Cont)
INCOMING CENTRAL OFFICE TRUNK CALL
CONDITION
RESULTS
S
CONSOLE A
CONSOLE B
T
ACTION
KEY
LAMPS
LAMPS
E
REMARKS
p
DESIG
OPR
CO
RD
CO
RD
TRK
TRK
TRK
TRK
47
Atnd releases
POS
0
0
@
0
@
RLS
48
Distant PBX atnd answers
0
@
Conversation satisfactory between calling
0
@
party and distant PBX attendant
49
CO party and tie trunk disconnects
e
@
Atnd must reenter connection to release
e
@
RD tie trunk - No disconnect supervision
50
Atnd reenters tie trunk connection
RD
0
e
0
e
0
TRK
51
Atnd releases connection to ringdown tie
REL
MO
e e
e e
trunk
DEST
- -
52
Atnd releases
POS
0
e e
Console idle
e e
RLS
Call Extended to Dial Tie Trunk
53
Repeat Steps 1 through 3
0
-
0
e
54
Atnd dial tone connection
START MO
0
--
Dial tone heard by atnd
0
e
---------
_._---
- - -
------
- - - - - - - - - -
55
Atnd dials access code of tie trunk
0
e
Dial tone silenced
0
e
Second dial tone heard
56
Atnd dials code of station at distant PBX
0
e
Second dial tone silenced
0
e
Audible ringing tone heard by atnd
- - - - -
57
Atnd releases before called party answers
POS
0
0
e
Audible ringing tone heard by CO party
0
e
RLS
iii
en
~
en
rn
n
...
s
z
UI
UI
W
~
~
o
...
I
W
o
Q
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