The newly appointed Certkiller trainee technician wants to know what a phone must support to enable the use of extension mobility. What will your reply be?

A.
XML

B.
HTML

C.
CTI

D.
Perl

E.
Java

Explanation:
Cisco CallManager Extension Mobility (an XML-based authentication feature) is comprised of the Cisco
CallManager Extension Mobility application and the Cisco CallManager Extension Mobility service.
*page 1-2, Cisco CallManager Features and Services Guide