Programming Manual References4.11 [2-7-1] Class of Service—COS Settings—Extension Feature— Call Monitor6.1 [4-1-1] Wired Extension—Extension Settings—Option 3— Executive Override Deny6.10 [4-2-1] Portable Station—Extension Settings—Option 3— Executive Override DenyFeature Guide References1.8.3 Call MonitorAutomatic Callback BusySpecifies the feature number used to reserve a busy line and receive callback ringing when the line becomesidle.Value Range1 digit (0–9, *, or #)Maintenance Console Location4.10 [2-6-3] Numbering Plan—B/NA DND Call FeatureProgramming Manual ReferencesNoneFeature Guide References1.8.1 Automatic Callback Busy (Camp-on)BSS / OHCA / Whisper OHCA / DND Override-2Specifies the feature number used to notify a busy extension of a second call by Call Waiting, or call anextension in DND mode. This is the same setting as BSS / OHCA / Whisper OHCA / DND Override onthis screen, and can be used to provide two methods of activating the specified features. This can be useful,for example, if users prefer to use a separate feature number to activate DND Override.Value Range1 digit (0–9, *, or #)Maintenance Console Location4.10 [2-6-3] Numbering Plan—B/NA DND Call FeatureProgramming Manual References6.1 [4-1-1] Wired Extension—Extension Settings—Option 2— Manual C. Waiting for Extension Call6.10 [4-2-1] Portable Station—Extension Settings—Option 2— Manual C. Waiting for Extension CallFeature Guide References1.1.3.3 Call WaitingPC Programming Manual 4254.10 [2-6-3] Numbering Plan—B/NA DND Call Feature