Indicates that you are receiving information, Indicates that you are sending information, Indicates that your phone is in vibrate mode – Samsung VM-A680 User Manual

Page 23: Indicates that position location is active, Indicates that position location is inactive, Indicates that the tty option is on, Indicates that your phone is roaming, Indicates that your phone is in security mode, Indicates that an alarm is set on your phone, Indicates that the ringer is turned off