Calisto® 620 - Your Mobile Conference Room

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Communicate across devices

The first wireless speakerphone designed for UC, Calisto® 620 seamlessly integrates calls from your laptop or smartphone. 

Intuitive call management

Intuitive controls to answer/end, mute and adjust volume on PC and smartphone means simplified call management.

Bluetooth mini USB adapter

Mini Bluetooth® USB adapter can be kept in a storage port under the speakerphone or left in your laptop for always-ready PC connectivity.

Uncompromised audio quality

360-degree room coverage with active background noise cancellation, perfect for mobile-professionals who have to make calls in a variety of settings.

Auto-switching directional microphones that activate in the direction of the speaker’s voice provides unmatched audio clarity.

PC wideband and Digital Signal Processing reduce drop-outs and echo while full duplex audio support creates natural rich sound.


Integrated A2DP lets you listen to streaming media from your mobile device, including your favorite songs, podcasts and more.

Talk time and battery meter

Long-lasting talk time of up to 7 hours, standby time of 5 days for worry-free all day use. Battery meter appears as an icon on PC icon tray (with Plantronics Spokes Software).


Included carrying case

Compact, lightweight, wireless design goes anywhere with a soft carrying case for secure portability. 

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Packaging Contents

Speakerphone, Bluetooth mini USB adapter, USB to Micro USB cable, wall charger, carrying case, Quick Start Guide 

Wireless Talk Time

Up to 7 hours (5 days standby)

Wireless Frequency

Bluetooth® v2.1 + EDR

Audio Performance

PC Wideband: Up to 6,800Hz; full duplex audio,
echo cancellation; dual auto-switching microphones limit the transmission of background noise; A2DP


Up to 33 ft.

Standard Model Number


Optimized for Microsoft Lync 2010 Model Number



4.33” w x 4.33” h x 1.26” d


Windows® or Mac® OS

Service & Support

2 years

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Video Setup Guide