Has anyone successfully configured Avaya 46XX IP phones with Server 2012 R2 DHCP? I exported the DHCP database from Server 2003 R2 and imported into a Server 2012 R2 build with the same name and IP.

Does anyone have any good resources on how to do a headless install for windows server 2012 r2? I've tried searching and found a few methods that don't seem to work... 1) I've run the installer to ...