User guide

During Calls
BusinessPhone – Ericsson Dialog 4187 Plus28
Handsfree Speaking
From handset to handsfree
You have an ongoing conversation via the handset.
 Press to switch the loudspeaker on.
You are now in the Group Listening mode.
d Replace the handset.
Handsfree conversation.
Note: You can adjust the volume, see section “Handset,
Loudspeaker and Headset Volume” on page 70.
ÄÂ Press to end the call.
From handsfree to handset
You have an ongoing handsfree conversation.
u Lift the handset.
Conversation via the handset.
 Press to switch handsfree speaking on or off.
During handsfree speaking, you are connected to the caller via the
loudspeaker and microphone.
Mute
You have an ongoing conversation.
É Press to switch the microphone on or off.
All microphones – handset, headset and the handsfree microphone
– are deactivated. When the lamp is lit, the caller will not be able to
hear the conversation in your room.