Unify OpenScape 4000, User Manual

Page: 91 / 256

Making calls 89
During a call
Activating/deactivating the microphone
You can temporarily switch off the handset microphone to prevent the other party
from listening in while you consult with someone in your office for example.
Prerequisite: You are conducting a call.
Deactivating the microphone
;
Press the key shown.
Activating the microphone
Æ
Press the key shown.
Changing the volume
You can change the volume of the handset or the loudspeaker during the call.
g
You are conducting a call.
"
Adjust the volume using the toggle key

page 27.
Switching from handset to speakerphone mode
Prerequisite: You are conducting a call via the handset.
Open listening in standard mode
:
and
]
Hold down the key and replace the handset. Then release the key and proceed
with your call.
Open listening in US mode (default setting)
If open listening is set to US mode, you do not have to hold down the loudspeak-
er key when replacing the handset to switch to speakerphone mode.
:
Press the key shown.
]
Replace the handset. Proceed with your call.
+
Take note of the two different processes and activate your preferred set-
ting as appropriate

page 175.
ñ
The microphone and loudspeaker functions are activated by your admin-
istrator.
A secure voice communication is indicated by a padlock icon on the status
bar.