1.3 Call Forwarding (FWD)/Do Not Disturb (DND) Features74 Feature Guide1.3.1.3 Do Not Disturb (DND)DescriptionAn extension user can make use of the DND feature. If this feature is set, calls will not arrive at the extension,but will arrive at another extension using the Idle Extension Hunting feature (→ 1.2.1 Idle Extension Hunting)or the Intercept Routing—Busy/DND feature (→ 1.1.1.6 Intercept Routing). When a destination cannot befound, the calling extension will hear the DND tone, while the calling outside party will hear a busy tone.Conditions• DND for Trunk Calls/Intercom CallsThe DND feature can be set for trunk calls, for intercom calls, or for both of them by the extension user.• DSS button in DND ModeThe DSS button light will turn red if the assigned extension has set DND.• DND OverrideAn extension in DND mode can be called by other extension users who are allowed to override DND intheir COS.• Paging DNDIt is programmable whether the PBX pages extensions in DND mode through system programming. (→1.15.1 Paging)• Intercept Routing—Busy/DNDIf a call arrives at an extension in DND mode, the call can be redirected to a preprogrammed destinationby the Intercept Routing—Busy/DND feature.• Idle Extension HuntingWhile searching for an idle extension within an idle extension hunting group, any extension that hasDND set will be skipped. The call will go to the next extension in the group, not the Intercept Routing—Busy/DND destination.• If (1) a trunk call via the ELCOT, LCOT, or T1 (LCOT/GCOT) card arrives at an extension in DND modeand (2) the Intercept Routing—Busy/DND destination is not available and (3) there is no availableextension in the idle extension hunting group, then the original extension in DND mode will ring.• Calls from a doorphone arrive at the extension even when the extension is in DND mode.Programming Manual ReferencesPC Programming Manual2.8.4 [2-3] Timers & Counters—Dial / IRNA / Recall / Tone—Tone Length—Busy Tone / DND Tone2.8.10 [2-6-3] Numbering Plan—B/NA DND Call Feature→ BSS / OHCA / Whisper OHCA / DND Override→ BSS / OHCA / Whisper OHCA / DND Override-22.8.11 [2-7-1] Class of Service—COS Settings—CO & SMDR—DND Override2.10.3 [4-1-2] Wired Extension—FWD/DND→ Call from CO—DND Status Availability→ Call from Extension—DND Status AvailabilityPT Programming Manual[507] DND Override
