Zte TELSTRA T20 User Manual page 19

WHAT THE SYMBOLS MEAN
Indicator Description
Headset Mode
Alarm is set
Missed Call
Silent Mode
Meeting mode (Silent with vibrate enabled)
Vibrate mode enabled
Call Forward is Active
Roaming, different rates apply, please check with your service provider
High Speed data access
New WAP Push Message
TTY mode for connection to Cellular Teletype Machines (CTM)
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