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.
SIP & Data Service Provider: We offer SIP Trunking for data services and support VOIP phone service with full QOS Data Connections, SIP & Data Services, SIP Trunking for Data Services Optimized for Voice.