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OK
Flash dial
tone
OK
( 4 50
Timed flash
to CO/PBX operator
Flash dial tone - connection put
o n hold (C HOLD)
Third station goes on-hook.
Originating station flashes.
I
Original Connection
re-established.
BSP S18·411·100-i01_1978-08-3l.jpg
CO/PBX call i n progress
Station flashes switch hook
ms)
SUP ERVISORY FL AS H F EA TUR ES
Connection established to another 6 B
station or C O / P B X line
Station flashes switchhook
Third station dialed
Originating station flashes
. .
Ongma connection re-establis ed,
third station added ( C A D D )
Scanned by Fra n k Harrell, (Cowboy Frank) Castle Rock, Colorado Oct 15, 2012 2 1 :05:30
TABL E K
CO/PBX O P ERATOR R E CALL
00
Dial
Operator answers
TABL E L
( C HOLD , CADD , X F ER )
I
+
answers
I
.
I
.
h
ISS I, SECTION S 1 8-4 1 1 - 1 00
FAI L U R E
Error tone - n o CO/PBX l i n k available
Originating station goes on·hook
I
Third station connected to held station
( X F E R )
Page 3 1
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