Exam 300-810 topic 1 question 57 discussion

An end user opened a ticket, stating that though he can log in to Jabber for Windows, and presence and chat works, he cannot place phone calls using the desktop client. You investigate the user and find that no phone device is associated with the user account in Cisco Unified Communications Manager. Which device type must you create for this user to enable calling services from the Jabber for Windows desktop client?