During a call
Select Options > Mute or Unmute.
Select Options > Hold .
Select Options > Activate loudspeaker . If you have attached a compatible headset with Bluetooth connectivity, to route the sound to the headset, select Options > Activate handsfree .
Select Options > Activate handset .
Press the end key.
Select Options > Swap .
To put an active call on hold, press the call key. To activate the held call, press the call key again.
Send Touch tone strings
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Select Options > Send touch tones .
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Enter the Touch tone string or search for it from the contacts list.
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To enter a wait character (w) or a pause character (p), press * repeatedly.
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To send the tone, select OK. You can add touch tones to the phone number or touch tone field in contact details.
Select Options > Replace .
Select Options > End all calls .
Many of the options that you can use during a voice call are network services.