Samsung Galaxy S III User Manual page 29

There is a system error or alert.
Indicates a security warning.
A voice call is in progress.
A call is on hold.
The speakerphone is enabled.
A call has been missed.
A call has been muted.
Call forwarding is set to Always forward.
Battery charge level. Icon shown is fully charged.
Your battery is charging.
Low battery power.
Battery is critically low.
Your phone is downloading or has downloaded a file.
An outbound file transfer is in progress.
Updates are available for download.
A Play Store download has completed.
The phone is connected to a computer via USB cable.
The phone is tethered via a supported USB cable
connection.
A new text or multimedia message is received.
A new voice mail is received.
Understanding Your Phone 22