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Direct Inward System Access (DISA)
Description
This feature allows you to remotely access system features such as System Speed Dial,
Line Access for long distance calling, CO Line-to-CO Line Conferencing, and Intercom
dialing. Any number of DISA lines may be assigned incoming DISA access based on the
system service mode (Day, Night or Always).
Talk time can be manually extended by the outside DISA party.
There are 24 passwords available, each 4 digits in length. Since the passwords are
relatively short, caution should be exercised when permitting unauthorized use of the
DISA facilities.
Operation
CO line 1 is programmed for DISA operation. When a call is made to CO line 1, that call is
automatically answered and a DISA dial tone is heard.
When a DISA dial tone is heard:
1. Dial [#].
2. Dial one of the DISA passwords (24 possible).
3. Dial [#].
Attendant Access
When the first dialed digit is the Operator Code, the call will be directly transferred to the
attendant.
Using System Speed dialing:
1. Dial [1].
2. Dial the System Speed Dial Bin (20-99).
3. The system will select an idle CO line and dial the stored speed dial number.
To access a CO Line:
1. Dial [2].
2. Dial a line number (DHS 1-12, DHS-E 700-717).
[1-9] = Line 1-9
[0] = Line 10
✻
[
= Line 11
[#] = Line 12
3. If the CO line selected is idle, DISA will connect the line for dialing.
DISA requires the Option Module for operation on the DHS.
Once your password is verified, a second dial tone is presented.
Direct Inward System Access (DISA)
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