Plantronics Calisto 620 Speakerphone Review
On review here is the Plantronics Calisto 620 UC wireless Bluetooth speakerphone. It's designed to pair with a smartphone or tablet for impromptu teleconferences and as the UC (Unified Communications) variant, the Calisto comes with a pre-paired USB Bluetooth transceiver, working well with IP-based telephony such as Microsoft's Lync or Skype for Business. In my experience, speakerphones fall into two