15.Speaker lets you hear different ringers and sounds. You can
mute the ringer when receiving incoming calls by pressing
, , or any of the side keys.
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,
20.
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