2.12 [5] Optional DevicePC Programming Manual 6892.12.3 [5-3-1] Voice Message—DISA SystemDirect Inward System Access (DISA) enables outside callers to access specific PBX features as if thecaller were using an SLT extension of the PBX.For more information on DISA, see "1.17.6 Direct Inward System Access (DISA)" in the FeatureGuide.Option 1DISA Security—DISA Security ModeSelects the DISA security mode to prevent unauthorised access to the PBX. In Trunk or All Securitymode, the caller is required to override security by Walking COS or Verification Code Entry in orderto enable the restricted feature temporarily.Value RangeNone: 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 codeand trunk calls are restricted.All: All calls are restricted.Maintenance Console Location2.12.3 [5-3-1] Voice Message—DISA SystemProgramming Manual ReferencesNoneFeature Guide References1.9.5 Walking COS1.9.6 Verification Code EntryDISA Security—Remote Walking COS through DISA without PIN (OptionalSD Card Required)Enables registered caller ID numbers to be automatically recognised as PBX extensions when callingthrough DISA, and to use the Walking COS features without entering a PIN.Value RangeDisable, Enable (Get DISA)Maintenance Console Location2.12.3 [5-3-1] Voice Message—DISA SystemProgramming Manual ReferencesNoneFeature Guide ReferencesNone
