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13.3.1 PBX Configuration—[5-3-1] Optional Device—Voice Message—DISA System
13.3 PBX Configuration—[5-3] Optional
Device—Voice Message
13.3.1 PBX Configuration—[5-3-1] Optional Device—Voice
Message—DISA System
Direct Inward System Access (DISA) enables outside callers to access specific PBX features as if the caller
were using an SLT extension of the PBX.
For more information on DISA, see "2.16.1 Direct Inward System Access (DISA)" in the Feature Guide.
Option 1
DISA Security—DISA Security Mode
Selects the DISA security mode to prevent unauthorised access to the PBX. In Trunk or All Security mode, the
caller is required to override security by Walking COS or Verification Code Entry in order to enable the restricted
feature temporarily.
Value Range
None: Intercom calls, TIE line calls, and trunk calls can be made.
Trunk: Intercom calls and TIE line calls without PBX code can be made. TIE line calls with PBX code and trunk
calls are restricted.
All: All calls are restricted.
Feature Guide References
2.7.5 Walking COS
2.7.6 Verification Code Entry
DISA Security—Remote Walking COS through DISA without PIN (Activation Key
Required)
Enables registered caller ID numbers to be automatically recognised as PBX extensions when calling through
DISA, and to use the Walking COS features without entering a PIN.
Value Range
Disable, Enable (Get DISA)
DISA Intercept—Intercept when destination through DISA sets DND
Selects how DISA calls are handled if the destination sets DND, and disables Idle Extension Hunting.
Value Range
Busy Tone, Enable, Busy Message
DISA Intercept—Intercept when all DISA ports are busy
Selects how DISA calls are handled if all DISA ports are currently in use.
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