1.8 Toll Restriction (TRS) FeaturesFeature Guide 873) Walking COS/Verified Code Entry (→ 1.8.4 Walking COS, → 1.8.5 Verified Code Entry)4) Extension Lock (→ 1.8.2 Extension Lock)Feature References1.5.5.3 CO Line Access1.6.1.4 Speed Dialing—Personal/System1.9.1 Automatic Route Selection (ARS)2.2.4 Time Service1.8.2 Extension LockDescriptionExtension users can lock their telephones to prevent unauthorized use—useful for situations whenextension users must leave their desks temporarily.When Extension Lock is engaged, the extension's Toll Restriction (TRS) level (→ 1.8.1 Toll Restriction(TRS)) is temporarily changed to another level, thereby determining which CO line calls can be made fromthe locked extension by another user.An extension personal identification number (PIN) is required to unlock a locked extension (→ 1.25.1Extension Personal Identification Number (PIN)), however, anyone can engage Extension Lock, as no PINis required.This feature is also known as Electronic Station Lockout.Conditions• This feature also restricts changing the Call Forwarding (FWD) destination. (→ 1.3.1.2 Call Forwarding(FWD))• Remote Extension LockAllows an extension assigned as a manager to lock or unlock an extension. When a manager locks anextension remotely, the extension's user cannot unlock it. When a user locks an extension, a managercan override the lock and unlock the extension.This feature is also known as Remote Station Lock Control.• TRS LevelThe TRS level of a locked extension is assigned through system programming. (→ TRS Level forExtension Lock [510]).• Other features can also temporarily change an extension's TRS level, similar to Extension Lock. If anextension is locked, the TRS level determined by the following features takes priority. The numbersbelow (1 through 3) indicate the priority of each feature, with 1 having the highest priority, and 3 havingthe lowest.1) Dial Tone Transfer (→ 1.8.3 Dial Tone Transfer)2) TRS Override by System Speed Dialing (→ 1.8.1 Toll Restriction (TRS))3) Walking COS/Verified Code Entry (→ 1.8.4 Walking COS, → 1.8.5 Verified Code Entry)Operation References1.5.3 Extension Lock2.1.1 Extension Control
