24 Basic functions
Open listening
People present in the room can silently monitor your call.
Prerequisite: You are conducting a call via the handset.
Activating
Speaker Press the key shown.
Deactivating
Speaker Press the illuminated key.
Turning the microphone on and off
To prevent the other party from listening in while you consult with someone in
your office, you can temporarily switch off the handset microphone or the
handsfree microphone.
Deactivating the microphone
Mute Press the "Mute" key.
Activating the microphone
Mute Press the illuminated "Mute" key.
Ending the call
Release Call Press the key shown.
or
Speaker Press the illuminated key.
or
\ Replace the handset.