Plantronics Calisto P540-M USB Voip Phone

Product Description Plantronics Calisto P540-m Usb Desk Phone : Plantronics Calisto P540 M PC powered desk phone Designed for use with Microsoft Office Communicator 2007/Microsoft Lync 2010 USB plug and play (Connects to PC via USB) Wideband audio Backlit LCD display shows incoming caller ID, time, and user’s on??????