Base and Headset Basics
Base overview
FRONT
1
2
3
1Call/mute LED
2Power on/subscription LED
3Charging LED
4Subscription button
5Narrowband/wideband audio switch
6Power jack
7Handset lifter/EHS cable jack
8Telephone interface cable jack
9Auto answer switch
10Listening volume dial*
11Speaking volume dial*
12Configuration switch*
*For installation set up
Headset overview
1 
3
2 4
7 5 
6
1Headband
2Volume down button
3Headset LED
4Volume up button
5Call control button
6Mute button
7Microphone
BACK
4
5 6 7 8 9
BOTTOM
10 
11 12
5