Gigaset C705 Manual page 22

Making calls
During a conversation
Handsfree mode
Activating/deactivating handsfree mode during a call, when establishing a connection and
when listening to the answer machine (where the system has a local answer machine):
Press the handsfree key
Placing the handset in the charging cradle during a call:
Press and hold down the handsfree key
hold for a further 2 seconds
Call volume
Applies for the mode currently being used (handsfree, receiver or headset, when the handset has
a headset connector):
Press use
The setting is automatically saved after around 3 seconds, even if Save is not pressed.
Muting the microphone
When the microphone is switched off, callers will no longer hear you.
Switch the microphone on/off during a call:
22
to set the volume Save
Place the handset in the charging cradle
Press .