Integrated Gigabit Ethernet
Up to 9 lines with call appearances
Shared call and bridged line appearances
Multi-proxy support
Distinctive ringing, priority alerting
144x75 pixels graphical LCD display
LED for call and message waiting indicator
Personal directory
Call forward/Call transfer/Call waiting
Caller and calling line information
Callers log
Local 3-way conference
Intercom with auto-answer
Do Not Disturb
4 call appearance lines with LEDs
4 navigational keys
6 customizable softkeys with LEDs;
programmable up to 26 functions
6 programmable keys with LEDs
8 predefined hard keys
Supports up to 3 M670i or M675i modules
HD Audio