Common Area Phone

Hello All,

I've an requirment of configuring Common Area phone (CX3000). AFAIK for configuring common area phone we need to have a contact created in AD or a disabled account. Below links confirms the same

http://technet.microsoft.com/en-us/library/gg412807.aspx 

My question is will a normal user be able to login to common area phones if he wants to do a conf with his identity. For example

I have a contact created as ConfRoom1 and some wants to make a call from his number/sipuri will he be able to login as he has an normal account.

Awaiting for your replies.

Thanks,

Ghouse