About This GuidevThank you for choosing the Yealink VC400 full HD video conferencing system. It supports1080P full-HD video conferencing and includes outstanding features such as goodcompatibility, easy deployment and intelligent network adaptability. This makes it theperfect choice for SMEs.The Yealink VC400 full-HD video conferencing system is designed to help enterprisesorganize video conferences easily and efficiently. Users can expect to enjoy thehigh-quality video conferencing experience very cost-effectively.This guide provides everything you need to start using your new video conferencingsystem. First, verify with your system administrator that the IP network is ready forsystem configuration. Also be sure to read the Overview and Getting Started sections inthis guide before you set up and use the VC400 video conferencing system.Topics provided in this guide include: Chapter 1 Overview Chapter 2 Getting Started Chapter 3 Customizing the VC400 Video Conferencing System Chapter 4 Using the VC400 Video Conferencing System Chapter 5 TroubleshootingThis section describes the changes to this guide for each release and guide version.The following sections are new for this version: Keyboard Input Method on page 35Major updates have occurred to the following sections: Icon Instructions on page 14 Setup Wizard on page 27 Directory on page 55 Bandwidth Settings on page 75