Table of ContentsixTable of ContentsAbout This Guide ...................................................................... vDocumentations ................................................................................................................................. vConventions Used in Yealink Documentations .................................................................................. viIn This Guide ..................................................................................................................................... viSummary of Changes ....................................................................................................................... viiChanges for Release 8, Guide Version 8.50 ............................................................................... viiChanges for Release 8, Guide Version 8.21 .............................................................................. viiiTable of Contents ..................................................................... ixProduct Overview ...................................................................... 1VoIP Principle ..................................................................................................................................... 1SIP Components ................................................................................................................................. 2Phone Models .................................................................................................................................... 3Physical Features of Skype for Business Phones .......................................................................... 4Key Features of Skype for Business Phones ................................................................................. 7Expansion Module .............................................................................................................................. 9Getting Started........................................................................ 11Connecting the Skype for Business Phones ...................................................................................... 11Attaching the Stand and the Optional Wall Mount Bracket ....................................................... 12Connecting the Handset and Optional Headset ........................................................................ 14Connecting the Power and Network ......................................................................................... 15Initialization Process Overview ......................................................................................................... 16Verifying Startup .............................................................................................................................. 18Reading Icons................................................................................................................................... 18Configuration Methods .................................................................................................................... 20Phone User Interface ................................................................................................................. 21Web User Interface ................................................................................................................... 21Configuration Files .................................................................................................................... 21Obtaining Configuration Files and Resource Files ............................................................................ 22Provisioning Server .......................................................................................................................... 23Supported Provisioning Protocols ............................................................................................. 23Setting up the Provisioning Server ............................................................................................ 24Deploying Phones from the Provisioning Server ....................................................................... 24Configuring Basic Network Parameters ............................................................................................ 26