BT Cordless Headset H55 Quick Setup And User Manual page 39

On the side of the base unit there is a termination
switch for adaptation to different telephone
systems. The switch can be set in different
positions (A-F) in order to help achieve the
best sound quality for both the receiver and
microphone.
1. Firstly, make sure the Corded Handset Connected
switch is set to YES.
2. Lift the corded handset and press
headset to check for a dial tone. If there is no dial
tone or the dial tone is unclear, slide the corded
handset audio adjust switch on the side of the
headset base from A to F until the dial tone is clear.
3. You can also fine tune the audio levels using
the volume control on the headset and the
microphone control on the base.
If you need some help, call us on 0800 218 2182* or go to bt.com/producthelp
For desk phone, i.e. BT
Converse, the default
position is E.
on the
Headset base settings 39