See also:

Redial
1. Select the “REDIAL” menu. 2. Select the desired number by operating the “TUNE/TRACK/CH” dial. 3. Select the “DIAL” menu or press the OFF hook switch . ...

When there is an upward slope at the back
1) 3 feet (1 m) The distance on the screen looks farther than the actual distance. ...

Models with Hands-free system
Press this button for more than 1.5 seconds if you wish to immediately cut the volume to zero. The audio display will show “MUTE”. If you press the button for more than 1.5 seconds again, the origin ...