Plantronics Calisto P835M is USB speakerphone optimized for work with Microsoft Office Communicator and Microsoft Lync. Calisto P835M is the first speaker in UC product family line, which unifies the possibility of simple call management and simultaneous work with cell phone, computer and analog telephone line.
Global Direct Telecom connects incumbent and mobile operators in Africa, the Asia/Pacific, the Middle East and Latin America to the major telecommunications hubs of North America and Europe.