User Guide for the Kyocera 1155 phone 20

Adjusting the volume during a call

To adjust the earpiece volume manually during a call, press up or down.
Note: To set the phone to automatically adjust the earpiece volume based on
the amount of noise around you or the other person’s voice volume
level, see “Setting automatic volume adjustment” on page 55.
Locking the keypad
Your phone has a keyguard function that locks your keypad to protect your
phone against accidental keypresses when the phone is turned on and a
call is not in progress. With keyguard enabled, you can still answer or
silence an incoming call.
To lock the keypad from the home screen, press left and hold.
To unlock the keypad, press in this order.