Administrator’s Guide for SIP-T2 Series/T19(P) E2/T4 Series/T5 Series/CP860/CP920 IP PhonesxviiiTable of ContentsIntroduction.................................................................................... vAbout This Guide ....................................................................................................................................................................... vChapters in This Guide ............................................................................................................................................................. vRelated Documentations ....................................................................................................................................................... viConventions Used in Yealink Documentations ........................................................................................................... viiReading the Configuration Parameter Tables .............................................................................................................. viiSummary Table Format ............................................................................................................................................... viiiConfiguration Parameter Table Format.................................................................................................................. ixRecommended References ................................................................................................................................................... xiUnderstanding VoIP Principle and SIP Components ................................................................................................ xiiVoIP Principle ................................................................................................................................................................... xiiSIP Components ............................................................................................................................................................. xiiiSummary of Changes ............................................................................................................................................................ xivChanges for Release 81, Guide Version 81.91 ................................................................................................... xivChanges for Release 81, Guide Version 81.90 ................................................................................................... xivChanges for Release 81, Guide Version 81.71 .................................................................................................... xvChanges for Release 81, Guide Version 81.70 .................................................................................................... xvChanges for Release 81, Guide Version 81.20 ................................................................................................... xviChanges for Release 81, Guide Version 81.15 ................................................................................................... xviTable of Contents ...................................................................... xviiiProduct Overview .......................................................................... 1SIP IP Phone Models ................................................................................................................................................................. 1Physical Features of IP Phones .................................................................................................................................... 1Key Features of IP Phones .......................................................................................................................................... 15Expansion Modules ................................................................................................................................................................ 17Getting Started ............................................................................. 21What IP Phones Need to Meet .......................................................................................................................................... 21Yealink IP Phones in a Network ........................................................................................................................................ 21Connecting the IP Phones ................................................................................................................................................... 22Attaching the Stand and the Optional Wall Mount Bracket (not Applicable to CP860/CP920 IPphones) .............................................................................................................................................................................. 23Connecting the Handset and Optional Headset (not Applicable to CP860/CP920 IP phones) ... 31Connecting the Power and Network ..................................................................................................................... 33
