in Cisco Unified CME 4.2 and later versions provides the benefit of phone
mobility for end users.
A user login service
allows phone users to temporarily access a physical phone other than their own
phone and utilize their personal settings, such as directory number, speed-dial
lists, and services, as if the phone is their own desk phone. The phone user
can make and receive calls on that phone using the same personal directory
number as is on their own desk phone.
Cisco Unified IP phone that is enabled for Extension Mobility is configured
with a logout profile. This profile determines the default appearance of a
phone that is enabled for Extension Mobility when there is no phone user logged
into that phone. Minimally, the logout profile allows calls to emergency
services such as 911. A single logout profile can be applied to multiple
Cisco Unified IP phone that is enabled for Extension Mobility boots up, the
Services feature button on the phone is configured with a login service URL
hosted by Cisco Unified CME that points to the Extension Mobility Login page.
No feature-button-specifc configuration is required to add Extension Assigner
to the Services feature button. The option for Extension Mobility appears last
in the list of options displayed when the phone user presses the Services
A phone user logs in
to a Cisco Unified IP phone that is enabled for Extension Mobility by pressing
the Services button or a Unified CCX agent can log in using a Unified CCX Cisco
Agent Desktop. User authentication and authorization is performed by Cisco
Unified CME. If the login is successful, Cisco Unified CME retrieves the
appropriate user profile, based on user name and password match, and replaces
the phone’s logout profile with the user profile.
After the phone user
is logged in, the service URL points to a logout URL hosted by
Cisco Unified CME to provide a logout prompt on the phone. Logging into a
different device automatically closes the first session and start a new session
on the new device. When a phone user is not logged in to any phone, incoming
calls to the phone user’s directory number are sent to the phone user’s voice
appearance, Extension Mobility associates directory numbers then speed-dial
numbers in the logout profile or user profile to phone buttons. The sequence in
which directory numbers are associated is based on line type and ring behavior
as follows: first normal, then silent ring, beep ring, feature ring, monitor
ring, and overlay, followed by speed dials. If the profile contains more
numbers than there are buttons on the physical phone to which the profile is
downloaded, the remaining numbers in the profile are ignored.
Enable Extension Mobility.