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.
Our Service includes Internet phones with free Internet calling and unlimited US and Canada plans. We offer prepaid phone service and International DID numbers using our voice over IP system and an analog telephone adaptor (ATA). The solutions are designe