Handset display
2.Use the Nav keys to scroll through the menu and highlight
3.Press Enter to select the next menu level.
4.Use the Nav keys to scroll through the menu and highlight Tone Volume.
5.Press Enter to select the option.
6.Use the Nav keys to adjust the volume.
7.Press Enter to select the setting.
8.Do one of the following:
•Press Back to return to the previous menu and choose another option.
•Press the End button to exit all menus and return to the standby state.
66