I am trying to delet a phone from my phone list in my CCM 5.04 but I fail since the phone use by some one "Log in".When I try to log out this user using CCMadmin web page I get this error:
Error occurred while retrieving information from database. [378] Device EM not enabled.
The CCM nWhcih I use is: 5.0.4.2000-1
Any advice.....