Making Calls – Basic Functions
17
Step by Step
Turning the Microphone On and Off
To prevent the other party from listening in while you
consult with someone in your office, you can temporar-
ily switch off the handset microphone or the handsfree
microphone. You can also switch on the handsfree mi-
crophone to answer an announcement via the tele-
phone speaker (speaker call, Æ Page 28).
Precondition: You are conducting a call. The micro-
phone is switched on.
Press the key. The LED lights up.
or
Press the illuminated key. The LED goes out.
or
Select and confirm.
or
or
Press the key. The LED lights up
qif or rif Enter the code for "on" or "off".
Speakerphone mode is not available with
optiPoint 400 economy.
Mute
Mute
Mute on?
Mute off?
Program/Service
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