About This GuidevAbout This GuideYealink T48S 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 aYealink T48S Skype for Business phone to the Skype for Business Server allows you to placeregular and Voice over Internet Protocol (VoIP) calls, answer calls, forward calls, conduct aSkype for Business conference call, and dial from your Skype for Business directory throughintegration with Microsoft’s Active Directory.This guide provides everything you need to quickly use your new phone. First, verify with yoursystem administrator that the IP network is ready for phone configuration. Also be sure to readthe Quick Start Guide in your phone package before you set up and use the phone. As you readthis guide, keep in mind that some features should be configured by your system administrator.Read theYealink Products Regulatory Notices guide for all regulatory and safety guidance.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 Advanced Phone Features Chapter 6 Using Optional Accessories with Your Phone Chapter 7 TroubleshootingSummary of ChangesThis section describes the changes to this guide for each release and guide version.Changes for Release 9, Guide Version 9.42The following sections are new: Multi-factor Authentication on page 31 Setting Your Phone as the Default Audio Playback for Your Computer on page 214
