As the title says, I am interested if there is a way to know for a Extension Mobility profile which phone it is logged into at the moment? On the physical phone I can see which profile is logged into it, but don't know how to do a reverse lookup.
go to cucm admin pages,
device-->phone on right top corner you see
actively logged in profile,
search on the profile you are interested in and you will find which phone it has logged into