User guide

83BusinessPhone – Ericsson Dialog 4425 IP Vision
Accessories
Accessories
This chapter describes optional features that can be used together
with your BusinessPhone telephone.
Headset
How to install the headset, see section “Installation” on page 87.
You can set your IP telephone to headset preset mode. This way
you can make calls without lifting the handset.
Activate headset preset mode
When the headset preset mode is turned off:
Í Press and hold the Headset key for 4 seconds.
Now the Headset preset mode is activated. All calls can be
handled via the headset.
Deactivate headset preset mode
When the headset preset mode is turned on:
Í Press and hold the Headset key for 4 seconds.
The Headset preset mode is deactivated.