1.5 E74 Feature Manual• This feature is not available for a CO-to-CO line call via Direct Inward System Access (DISA).Programming ReferencesPC Programming Manual2.8.8 [2-6-1] Numbering Plan—Main—Features—Executive Override Deny Set / Cancel2.8.10 [2-6-3] Numbering Plan—B/NA DND Call Feature—Executive Busy Override2.8.11 [2-7-1] Class of Service—COS Settings→ CO & SMDR—Executive Busy Override→ Extension Feature—Executive Busy Override Deny2.10.1 [4-1-1] Wired Extension—Extension Settings—Option 3—Executive Override Deny2.10.8 [4-2-1] Portable Station—Extension Settings—Option 3—Executive Override DenyPT Programming Manual[505] Executive Busy Override[506] Executive Busy Override DenyFeature Manual References1.3.16 COS (Class of Service)Operating Manual References1.3.23 Executive Busy Override1.5.4 Extension Dial LockDescriptionAn extension user can change the Toll Restriction (TRS) level of the telephone (→ 1.17.5 TRS (TollRestriction)) so that other users cannot make inappropriate CO line calls. An extension personalidentification number (PIN) is used to unlock the telephone (→ 1.5.6 Extension PIN (Personal IdentificationNumber)).This feature is also known as Electronic Station Lockout.Conditions• This feature also restricts changing the Call Forward (FWD) destination. (→ 1.6.6 FWD (CallForwarding))• Remote Extension Dial LockOverrides Extension Dial Lock. If an extension assigned as the manager sets Remote Extension DialLock on an extension that has already been locked by the extension user, the user cannot unlock it. Ifa manager extension unlocks an extension that has been locked by the extension user, the extensionwill be unlocked.This feature is also known as Remote Station Lock Control.• TRS LevelCOS programming determines the TRS level for Extension Dial Lock.• Other features can also temporarily change an extension's TRS level, similar to Extension Dial Lock. Ifan extension is locked, the TRS level determined by the following features takes priority. The numbers
