Plantronics Calisto 620 - Manual (Page 5)

Bluetooth USB Adapter
1
1 LED indicator light
Speakerphone
5 6
2 3
4 1
1 Volume up and volume down buttons 4 Mute/Unmute microphone button
2 Bluetooth status LEDs 5 Call button
3 Battery status LEDs 6 Mini USB adapter stowed on bottom of
the speakerphone
Back Panel
1 2
1 Off, on, Bluetooth pairing switch (3 position switch)
2 Power connector, firmware update connector
Basics
5