1) Windows 2012 R2 installation with requisite of IIS with command
Import-Module ServerManager
Add-WindowsFeature Web-Server, Web-Static-Content, Web-Default-Doc, Web-Scripting-Tools, WebWindows-Auth, Web-Asp-Net, Web-Log-Libraries, Web-Http-Tracing, Web-Stat-Compression, Web-DefaultDoc, Web-ISAPI-Ext, Web-ISAPI-Filter, Web-Http-Errors, Web-Http-Logging, Web-Net-Ext, Web-Client-Auth,
Web-Filtering, Web-Mgmt-Console, Web-Asp-Net45, Web-Net-Ext45, Web-Dyn-Compression, Web-MgmtConsole, Desktop-Experience
2) Join domain
3) Update schema /Forest / Domain
After update the schema --- cs-administrator
ii) cs-viewonly rights many more created
4) Install other tool for topology of lync
5) Create Topolgy with Pool ( enterprise or standard)
6) Define SQl server for database and file server
7) Create lync Web App server for view document those which has not office.
8) Publish topology
9) Install lync software
10)Create certificate for internal and external.
11) Start services of lync
12)After install lync download config file of central management
13)Install edge server to upload the file
14)Define certificate and sip domain for edge workgroup.