BUSY VERIFICATION CONFERENCE CIRCUIT.

1. ONE BUSY VERIFICATION CONFERENCE
CIRCUIT IS ALWAYS PROVIDED.THE CIRCUIT
IS A THREE-WAY CONFERENCE BRIDGE THAT
ENABLES AN OPERERATOR TO  VERIFY THE
BUSY/IDLE CONDITION OF A SUBSCRIBER
LINE.UPON REQUEST OF A PARTY ATTEMPTING
TO REACH A SPECIFIED DIRECTORY NUMBER,
THE OPERATOR DIALS THE CALLED LINE
NUMBER TO DETERMINE IF THE LINE IS IN
USE,IF THE RECEIVER IS OFF THE HOOK,OR
IF THE LINE IS IN LOCKOUT DUE TO A 
FAULT CONDITION.THE OPERATOR THEN RETURNS TO THE PARTY TRYING TO REACH THE DIRECTORY NUMBER AND STATES THE CONDITION OF
THE LINE.LINES WITH DATA SECURITY CAN
NOT BE ACCESSED FOR BUSY VERIFICATION
WHEN THE LINE IS IN USE.(REFER ALSO TO
DATA SECURITY)
2. THREE PORTS ARE ASSIGNED TO EACH BUSY VERIFICATION CONFERENCE CIRCUIT.ONE 
PORT IS FOR OPERATOR ACCESS AND TWO PORTS ARE USED TO SPLIT AN EXISTING CONNECT
ION.TO VERIFY THE BUSY/IDLE CONDITION OF A LINE,THE OPERATOR ESTABLISHED A CONECTION TO THE OPERATOR ACCESS PORT AND 
DIALS THE DIRECTORY NUMBER OF THE LINE TO BE VERIFIED.IF THE LINE IS IN USE,THE
EXISTING CONNECTION IS BROKEN AND IMMEDIATLY RE-ESTABLISHED THROUGH THE OTHER
TWO PORTS OF THE BUSY VERIFICATION CIRCUIT WITHOUT INTERRUPTION TO THE ESTABLIS
HED SPEECH PATH.THE BUSY VERIFICATION
CIRCUIT IS CONTROLLED BY ACCESS CODE.
A DEDICATED TRUNK CAN BE USED BUT IS
NOT NECESSARY.
3. THE BUSY VREIFICATION CIRCUIT ALSO
CAN BE USED FOR TEST VERIFY FROM THE
WIRE CHIEFS TEST PANEL.
B. ADDITIONAL BUSY VERIFICATION CONFERENCE CIRCUITS (002749)

O.K. THERE IT IS-RIGHT OUT OF AN ESS
MANUAL WORD FOR WORD! (AND IM GETTING
25 LINEAR FEET OF ESS MANUALS!!!
NOT COUNTING THE STACK RECEIVED SO FAR!
       HAR-HAR-HAR          )

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