This document is a user guide for the Polycom VVX 400 and 410 business media phones. It provides an overview of phone features and functions and instructions for basic and advanced call handling, customizing the phone interface, and performing administrative tasks. The guide includes information on hardware features, navigating the phone interface, placing and receiving calls, accessing directories and call logs, customizing audio settings and the display, and troubleshooting issues. It aims to help users learn how to utilize their phone's full capabilities.