To mute or unmute the microphone, select or .

To put the call on hold or unhold it, select or .

Warning: Do not hold the device near your ear when the loudspeaker is in use, because the volume may be extremely loud.

To activate the loudspeaker, select . If you have attached a compatible headset with Bluetooth connectivity, to route the sound to the headset, select Options > Activate BT handsfree.

To switch back to the handset, select .

To end the call, select .

To switch between the active and the held call, select .

Tip: When you have only one active voice call, to put the call on hold, press the call key. To activate the call, press the call key again.

To send DTMF tone strings (for example, a password), select Options > Send DTMF.

Enter the DTMF string or search for it in 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.

To end an active call and replace it by answering the waiting call, select Options > Replace.

To end all your calls, select .

Many of the options that you can use during a voice call are network services.