Section 700 - Operation
Digital pad settings allow adjustment of call levels for different call types. There are 29 pad classes in
the System. For pad class, a volume adjustment is assigned for a connection to any pad class
assignment. The volume adjustment is between -30dB and +30 dB.
There are 8 extension pad classes and 16 trunk pad classes. In addition, there are pad classes for
conference calls, page port, MFR, RAI Modem, and Conference Call Unit. One pad class is currently
For instance, a call from an extension assigned to extension pad class 1 to a trunk assigned to trunk
pad class 3 would received the volume adjustment assigned to this connection combination.
Direct Inward System Access
Direct Inward System Access (DISA) gives off-site users dial-in access to the System. You access
DISA from an outside location by entering a digit number assigned to a DISA trunk.
For security reasons, sixteen incoming DISA ID codes/TRS class can be assigned. If a code is
assigned, it must be entered as soon as the DISA trunk answers.
To make a DISA call to an extension:
1. From an outside location, enter the DISA trunk number.
2. If an incoming DISA code is assigned enter the DISA code
(up to 10 digits). Otherwise, proceed to step 3.
3. Dial the extension number.
DBS 576 (USA), issued January 1999
Chapter 3. System Features
DISA dial tone