Direct Inward System Access (DISA) System Features
1-16 DBS 824-3.0/3.2-700 Revised April 2000
• FF2 (Trunk): DISA End Time
To program an incoming code from an attendant phone:
In addition to the DISA ID Setting in FF1, the following procedure can be
used to program an incoming code.
1. Press the
ON/OFF key.
• The phone issues intercom dial tone.
• The ON/OFF LED lights.
2. Press the
CONF key.
3. Dial “#7.”
4. Enter the DISA code.
5. Press the
HOLD key.
6. Press the
ON/OFF key.
The ON/OFF LED goes off.
Hardware Requirements
• An MFR card is required for DISA (either the 2-circuit MFRU Circuit
Card VB-42431 or the 8-circuit MFR Circuit Card VB-43431). The MFR
card is required to detect DTMF tones entered via the DISA connection.
• CT1 (CO Tone 1; also labeled VR1) controls the ringing volume of DISA
calls to extensions when the MFR 8-circuit VB-43431 circuit card is used..
VR1 (also labeled MOH) controls the ringing volume of DISA calls to
extensions when the 2-circuit MFRU VB-42431 circuit card is used. See
the DBS 824 Installation Manual (Section 300) for more information.
Considerations
• DISA can be used to access extensions as well as outside numbers.
• Once an incoming DISA code is entered, you cannot blank it out without
entering the programming mode.
• Busy override cannot be used for a DISA line.