Compatible with
All leading brands IP PBX & network
Function
Hold/mute/transfer/forward/3 way conference/redial/paging/voice mail
Language
Multiple languages supported
Volume
Speakerphone/Handset/Headset/Ringer volume 8 levels adjustable
USB charging ports
A+C, 5V 2A
SOS key
1 SOS emergency SOS key
Insertable paper card
To print customer service instructions