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- Mitel 685 Expansion Module
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M685 Expansion Module
Powered directly from the phone, up to three modules can be daisy-chained together to provide additional programmable keys supporting advanced features such as SCA, BLF, and speed dial.
Color LCD, supported on the 6865, 6867, 6869, 6873, 28 programmable keys with LED, 4.3" color graphical display. Can be daisy-chained with up to 3 modules powered by the phone