The Polycom CX600 IP (Internet Protocol) phone is a full-featured unified communications desktop phone, optimized for use with Microsoft®Lync™ environments.Polycom CX500/CX600/CX3000 IP Phone User Guide Microsoft Lync 2010 Edition December, Rev.A Polycom CX500/CX600/CX3000 IP Phone User Guide Trademark The following figure shows the Desk Phone Setup screen that displays on your phone at startup and shows how to connect your phone to your computer. 2 Sign in to About Your Phone The Polycom CX600 Lync Phone Edition uses Voice over Internet Protocol (VoIP) technology to provide many features not available on a The Polycom CX600 IP phone is sophisticated desktop phone with colour display and Polycom HD Voice Technology. Shop now. Polycom® CX500/CX600/CX3000 IP Phone User Guide ii. Polycom, Inc. Trademark Information Polycom® CX600 IP Knowledge/Information Worker Phone.