Uniden BTSC1100 Owner's Manual page 4

LED (Status Icon) and Tone Indicators
Status
Power On
Pairing Mode
Connectable Mode
Connected Mode
While Calling
Status
Power On
When connected
Incoming Call
Active call
Ending Call
Low Battery
4
Icon Indication
Bluetooth Status Icon blinks 3 times
Bluetooth Status Icon blinks repeatedly
Bluetooth Status Icon blinks 1 time every 5 seconds
Bluetooth Status Icon blinks 2 times every 5 seconds
Bluetooth Status Icon blinks 3 times every 5 seconds
Beep Indication
Turn-on Melody (no connection), Turn-on Melody + 2 short beeps (easy pairing mode)
2 Short beeps
Melody
2 Rising Beeps
2 Falling Beeps
Alert Melody every 30 seconds