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4.4 Functions Available During a Call
While a call is in progress, it is possible to change the volume,
activate the handsfree function, mute the microphone and activate
a conference with other call participants.
4.4.1 Adapting the Volume During a Call
Adapt the volume while a call is in progress by pressing the In-
crease volume
or Lower volume button.
4.4.2 Handsfree Function
You can select whether to hear the caller via the loudspeaker.
1 When a call is in progress, tap on the ┣Speaker┫ button.
▸ The microphone is switched o, the caller cannot hear
you.
2 Tap on the ┣Speaker┫ button again.
▸ The microphone is switched on, the caller can hear you
again.