DISA Security Mode and Available FeaturesIf the DISA AA service is not employed, the caller may access the PBX features by entering the featurenumbers. To prevent others from accessing the PBX features, it is possible to assign DISA security.→ 7.3 [5-3-1] Voice Message—DISA System— DISA Security—DISA Security Mode→ [732] DISA Security ModeThe features available depend on the preprogrammed DISA security mode as follows:Security Mode IntercomCallTIE Line CallTrunk CallWithout PBX Code With PBX CodeAll SecurityTrunk Security ü üNo Security ü ü ü ü*1ü: Available*1 If trunk call is available, Account Code Entry (® 1.5.4.3 Account Code Entry) is also available.NoteDISA AA service and Operator Call (® 2.2.5 Operator Features) are available for any security mode.Security Mode Override by Verification Code EntryIf the caller performs Verification Code Entry (® 1.9.6 Verification Code Entry) while hearing a DISA message,the security mode can be temporarily changed to No Security mode.Entry method:Verification Code Entry feature number + + verification code + verification code PINAfter changing mode, the new mode remains in force for the duration of the call.DISA Intercept Routing—BusyIf the first destination called by the outside party is busy, the call is redirected as follows:a. The call is redirected to the Intercept Routing—Busy destination assigned to the first destination.b. If an Intercept Routing—Busy destination is not assigned to the first destination and a prerecorded DISABusy Message is assigned, the caller will hear the DISA Busy Message.c. If neither an intercept destination nor a DISA Busy Message is assigned, the caller will hear a busy tone.→ 6.1 [4-1-1] Wired Extension—Extension Settings—Intercept Destination— Intercept Destination—WhenCalled Party is BusyDISA Intercept Routing—DNDIf the destination called by the outside party is in DND mode and Idle Extension Hunting is not available, oneof the following can be selected through system programming:a. Busy Tone: The caller will hear a busy tone.b. Enable: DND will redirect the call to the preprogrammed destination on an extension basis.c. OGM: An outgoing message (OGM) will be sent to the caller. The message for DND mode can be assignedfor each outgoing message (OGM) which has a DISA floating extension number.→ 7.3 [5-3-1] Voice Message—DISA System— DISA Intercept—Intercept when destination through DISAsets DNDDISA Intercept Routing—No AnswerIf a destination is not available to answer a DISA call within a preprogrammed time period (DISA Intercept time)after the call is reached, the call will be redirected to the programmed destination by the Intercept feature.If the intercept destination is not available to answer the call within a preprogrammed time period (DISADisconnect Time after Intercept) after the DISA Intercept time expires, the call will be disconnected.4.5 [2-3] Timers & Counters—DISA / Door / Reminder / U. Conf196 Feature Guide1.17.6 Direct Inward System Access (DISA)