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Plantronics Launches New Calisto Portable USB Speakerphones to Make Conference Calls Easy for Mobile and Remote Workers

SANTA CRUZ, Calif., Jan. 16, 2019 (GLOBE NEWSWIRE) — Plantronics (NYSE: PLT ), an audio pioneer and unified communications technology leader, today announced the launch of Calisto 3200 and Calisto 5200 portable, personal speakerphones for personal computer […]