See also:

Top redial
1. Select the top menu (phone menu). 2. Press the OFF hook switch and load the outgoing call history. 3. Select the “DIAL” menu. ...

Adjustable level of each mode
*: For type A and B audio, AUX volume can be adjusted only when an AUX audio product is connected. ...

Volume control switch
Press the switch to the “+” side to increase the volume. Press the switch to the “−” side to reduce the volume. A number indicating the volume will be shown on the audio display. ...