What do the LEDs on P710e mean?

The P710e speakerphone LED lights indicate the current status of your speakerphone.

LED color and activity	Status
Blue LEDs form a complete ring from bottom to top	Powering on
Solid Green LED above the Volume Up button	Powered on
Complete ring of red LEDs	Microphone muted
Full or partial green ring	Different volume levels
Single flashing blue LED (above Volume Up button)	Connection available for previously paired Bluetooth device, or previously connected device is no longer in range, or connection has been lost
Solid ring of blue LEDs, briefly lit	Connection successful
Rotating single blue LED	Speakerphone is in pairing/discovery mode
Single green LED next to the Call Answer button	Currently on a call
Flashing white or blue LED between the Call Answer and End buttons	Incoming call
Red LEDs going from full ring to no LEDs in circular motion from top to bottom	Powering off (when all LEDs are off, device is off)