Sanyo SCP-2400 User Manual page 12

15. Speaker lets you hear different ringers and sounds. You can
mute the ringer when receiving incoming calls by pressing
,
16. Sub LCD lets you monitor the phone's status and see who's
calling without opening the phone.
17. LED Indicator shows your phone's connection status at a
glance.
18. Antenna fully extend the antenna for the best reception.
19. Headset Jack allows you to plug in an optional headset for
convenient, hands-free conversations.
20. 10-4 Button allows you to access the 10-4 List. (See "Displaying
the 10-4 List" on page 91.)
21. Side Volume Key lets you adjust the receiver volume during a
call or ringer volume in standby mode. You can also use it to
scroll up or down to navigate through the different menu
options.
4
, or any of the side keys.