M685I EXPANSION MODULE Expansion Module for 6865i, 6867i, 6869i, 6873i
Specifications:
- Display: 4.3” backlit color LCD, 480×270 pixels
- Programmable Keys: 28 per page
- Pages: 3; for 84 keys total
- LED Indicators: yes
- Busy Lamp Fields: supported
- Speed Dialing: supported
- Stackable: up to 3 modules (252 keys total)
- Power: via phone