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 DTMF tone strings
Select Options > Send DTMF .
Enter the DTMF string or search for it from the contacts list.
To enter a wait character (w) or a pause character (p), press * repeatedly.
To send the tone, select OK. You can add DTMF tones to the phone number or DTMF 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.