optiPoint 500 Key Module
The optiPoint 500 Key Module expands the telephone capabilities by providing users with single-button access to speed dial numbers or DSS (Direct Station Selection) to internal extensions. The 16 programmable feature keys with LEDs can increase call handling efficiency and accuracy when used at an attendant station. Up to two optiPoint 500 Key Modules can be connected to the optiPoint 500 Basic, Standard SL, Standard and Advance models for a total of 30 additional feature keys.
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