Samsung SCH-A530ZSVXAR - Manual (Page 19)

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Service indicator: This icon indicates a call is in progress. When
the phone is calling a number, this icon will flash until the call is
connected.
No service indicator: This icon indicates your phone cannot find a
signal because you’re outside a service area. You cannot make or
receive calls. Wait a little while for a signal or move into an open area.
Note: The no service indicator icon will always appear when you turn on your
phone. As soon as service is located, the indicator will disappear.
Roam: This icon is your extended roaming indicator. Roaming
occurs when you use your phone outside your home area. While
roaming, another service provider's system handles your call, so the
service rate for the call may be higher than the rate for calls made
within your home area. Please refer to the price plan information
from your carrier for more detail regarding your service rates.
New Message: This icon appears when a new voice, text, page or
web alert message is received.
High speed data: This icon indicates that your phone is sending or
receiving data at a high speed.
Vibrate mode: This icon indicates that an incoming call will make
the phone vibrate rather than ring.
Battery strength: This icon always displays when your phone is
active, it displays your battery charge level. The more black bars you
see, the greater the charge. When the battery becomes very low, a
flashing empty battery icon displays and the phone sounds an audible
alert; this indicates that your phone is about to turn itself off.
Alarm clock: This icon displays when you have your alarm clock set.