Samsung SGH-d357 Series User Manual page 22

3. External Speaker: The external speaker allows you to
hear the other caller when using the speaker phone
option.
4. Front LCD: The external LCD view incoming call phone
number or indicates when you have a message.
5. Service LED: The Service LED has the following
functions.
Flashes blue to indicate an incoming call or to indicate there is
a voice mail message.
Momentarily lights when you power up the phone.
6. Antenna: Used to obtain maximum reception.
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