Mitel / Aastra M680 Expansion Module (80C00010AAA-A)
The M680i Expansion Module will provide users with a cost effective addition to their 6800i series phones. This expansion module comes equipped with 16 additional programming keys with built in LED enabling support.
Features
- 16 programmable keys with LEDs
- Paper insert labeling
- Optional daisy chaining with the M685i for a combined total of up to 3 modules
- Powered by the phone; no separate power adapter required