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Basic functions
Switching to speakerphone mode
People present in the room can participate in your call.
Prerequisite:
You are conducting a call via the handset.
n]
Hold down the key and replace the handset. Then release the key and proceed
with your call.
if nec.
X
Adjust the call volume.
U.S. mode
If your communication system is set to U.S. mode (consult your administrator),
you do not have to hold down the speaker key when replacing the handset when
switching to speakerphone mode.
n
Press the key shown.
]
Replace the handset. Proceed with your call.
if nec.
X
Adjust the call volume.
Switching to the handset
Prerequisite:
You are conducting a call in speakerphone mode.
^
Lift the handset.
n
The key LED goes out.
Open listening
People present in the room can silently monitor your call.
Prerequisite:
You are conducting a call via the handset.
Activating
n
Press the key shown. The LED lights up.
Deactivating
n
Press the illuminated key. The LED goes out.
It is not recommended to activate the open listening feature in connection
with a Bluetooth headset
Page 161 because this can lead to reduced
quality depending on the headset and environment.
