Advertisement
Plantronics Calisto420 (For multiple participants)
• Plantronics Calisto420 is available for multiple participants as it is
equipped with a 3.5mm external speaker connector.
1. Connect the USB cable to the USB
port on your computer.
• Don't put external speaker in front of the speakerphone.
• Remove any obstacle around the audio device.
２．Connect the 3.5 mm cable of the
external speaker to the connector on
Calisto420.
Advertisement
