Making Calls – Basic Functions

Step by Step

Mute

or

Mute

or

Mute on?

or

Mute off?

or

Program/Service

qif or rif

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).

Speakerphone mode is not available with optiPoint 400 economy.

Precondition: You are conducting a call. The micro- phone is switched on.

Press the key. The LED lights up.

Press the illuminated key. The LED goes out.

Select and confirm.

Press the key. The LED lights up

Enter the code for "on" or "off".

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Image 17
Siemens optiPoint 400 operating instructions Turning the Microphone On and Off, Qif or rif