The document provides instructions for setting up and using the Polycom CX600 desk phone with Microsoft Lync 2010. It describes connecting the phone to a computer, signing into the phone with Lync credentials, and navigating and using the phone's display, menus, contact list, calendar, call logs, and voicemail. It also explains how to place, answer, and end calls, adjust volume, put calls on hold, forward calls, and host conferences using the phone.