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2.1 System Configuration—Hardware
162 Feature Guide
2.1 System Configuration—Hardware
2.1.1 Extension Jack Configuration
Description
Extension jacks are used to connect proprietary telephones (PTs), single line telephones (SLTs), Direct
Station Selection (DSS) Consoles, and Voice Processing Systems (VPSs) to the PBX.
Conditions
• PT and SLT in Parallel Mode
A PT and an SLT can be connected to an extension jack and used in parallel mode.
• DSS Console and Paired Telephone Assignment
When a DSS Console is connected, a PT must be paired with the DSS Console through system
programming ( DSS Console Jack Assignment [003], Console Paired Telephone [004]). Each
extension jack number should be unique.
• Automatic Detection
A PT and an SLT can be connected to an extension jack with no programming required.