AASTRA 4223 Professional for MD Evolution User Guide - Manual (Page 36)

Operations during a Call
MD Evolution – Dialog 4223 Professional
36
Muting during a Conversation
When you participate in an incoming or outgoing conversation using
handsfree mode, you may activate the mute function for your ex-
tension, preventing your party from hearing what you say. To do so: É
Press this key to activate the mute mode.
The LED associated with this key is lit, and your extension’s
microphone is momentarily deactivated. Only your extension’s
loudspeaker remains active.
To deactivate the mute function: É
Simply press this key once again.
The LED associated with this key is unlit, and your conversation
once again continues normally in handsfree mode.
Note: This function is also applicable when you carry on a
conversation on the handset. It momentarily cuts off voice
transmission from your extension’s handset.
Adjusting the Loudspeaker or Handset
Listening Volume
Whether you are carrying on a conversation on the handset or in
handsfree mode, you can adjust the handset/loudspeaker listening
volume for your extension.
This volume is pre-set. See also the “
Programming Your Extension ”
section.
When necessary, during a call, you may modify the level, for
example to compensate for a temporarily noisy environment.
To do so: ì
Simply press either the + or - keys to increase or decrease
the listening volume.
This adjustment is then only valid for the current call.