About This GuidevAbout This GuideYealink T48G phone with the Skype for Business firmware enables a new era in unifiedcommunications. It is designed to work with the Skype for Business Server. Connecting a YealinkT48G Skype for Business phone to the Skype for Business Server allows you to place regular andVoice over Internet Protocol (VoIP) calls, answer calls, forward calls, conduct a Skype forBusiness conference call, and dial from your Skype for Business directory list through integrationwith Microsoft’s Active Directory.This guide provides everything you need to quickly use your new phone. First, verify with yoursystem administrator that the network is prepared for configuring your Yealink T48G Skype forBusiness phone, and your network is correctly configured. Also be sure to read the PackagingContents and Regulatory Notices sections in this guide before you set up and use the YealinkT48G Skype for Business phone.In This GuideTopics provided in this guide include: Chapter 1 Overview Chapter 2 Getting Started Chapter 3 Customizing Your Phone Chapter 4 Basic Call Features Chapter 5 Common Area Phone Chapter 6 Better Together over Ethernet Chapter 7 EXP40 Expansion Module Chapter 8 TroubleshootingSummary of ChangesThis section describes the changes to this guide for each release and guide version.Changes for Release 8, Guide Version 8.50The following sections are new for this edition: Remembering Password on page 47 Private Line Ring Tones on page 161 Hotline on page 107