1.1 General FeaturesFeature Manual 77Feature Manual References1.1.21 Call Pickup, Group1.1.42 Direct Inward System Access (DISA) Ring1.1.67 Idle Extension Hunting1.1.96 Paging—Group1.1.54 Extension Jack ConfigurationDescriptionExtension jacks are used to connect proprietary telephones (PTs), single line telephones (SLTs), DirectStation Selection (DSS) Consoles, and Voice Processing Systems (VPSs) to the PBX.Conditions• PT and SLT in Parallel ModeA PT and an SLT can be connected to an extension jack and used in parallel mode.• DSS Console and Paired Telephone AssignmentWhen a DSS Console is connected, a PT must be paired with the DSS Console through systemprogramming ( [003] DSS Console Jack Assignment, [004] Console Paired Telephone). Eachextension jack number should be unique.• Automatic DetectionA PT and an SLT can be connected to an extension jack with no programming required.Programming Manual References[PT Programming][003] DSS Console Jack Assignment[004] Console Paired Telephone[PC Programming]9.2.8 DSS Console [2-5]1.1.55 Extension LockDescriptionExtension users can lock their telephones to prevent unauthorized use. This is useful for situations whenextension users must leave their desks temporarily. Any 4-digit code can be used to lock and unlock anextension.This feature is also known as Electronic Station Lockout.Conditions• Remote Extension LockWhen the operator or manager locks an extension remotely, the extension's user cannot unlock it.When a user locks an extension, the operator or manager extension can override the lock and unlockthe extension.
