After a successful login using Cisco Extension Mobility, an IP phone performs a restart followed by
a reset. What can cause this issue?

A.
The phone model to which the user logged in is a different model than the model that is
configured in the user device profile.

B.
The locale that is configured on the phone is different than the locale that is configured in the
user device profile.

C.
The security profile that is specified in the user device profile does not match the security profile
for the phone where the user logged in.

D.
The user device profile and the phone that is used for the Cisco Extension Mobility log in do not
use the same phone protocol.