Information Technology Reference
In-Depth Information
Understanding CUCM Mobility Features
CUCM incorporates a range of Mobility features that allow a user to interact with their
Unified Communications devices and applications regardless of where he happens to be.
The goal is to extend the ability to communicate with customers or colleagues using their
enterprise IP phone number, both for inbound and outbound calls, in a seamless and flexi-
ble way. The following sections describe the features and configuration of some of the
Mobility capabilities of CUCM.
Describe Mobile Connect
Mobile Connect is often called Single Number Reach: A user's IP phone number becomes
the single number by which all the various other devices that person uses can be reached,
including home phones, mobile phones, Internet-based VoIP numbers, and so on. The ben-
efit is that a single point of voice contact is published for simplicity and consistency,
whereas a range of devices can actually take calls, which provides maximum flexibility
and reachability for the person almost regardless of where they may be or which commu-
nication method they may have available to them.
The user experience is simple, but powerful; if he receives a call at his business number,
his IP phone rings. In addition, all the other devices configured for Mobile Connect ring at
the same time. Whichever device is answered receives the extended call, and all other de-
vices stop ringing.
Suppose the user answers the call on his mobile phone while on the way to his office.
When he gets to his desk, he has the option of picking up the call at his IP phone by press-
ing a softkey. The call is seamlessly transferred to the desk phone, and the caller may not
even realize it has happened.
Likewise, the user can be in a call on his IP phone and redirects it to his mobile device as he
leaves the office, again without the other party knowing that it has happened (except, of
course, the possibility of a change in background noise or voice quality on a cell phone).
If the user calls a colleague's IP phone by dialing his Direct Inward Dial (DID) from his
mobile phone, CUCM recognizes the Automatic Number Identification (ANI) (the Caller
ID) of the user as matching a Remote Destination Profile, which has a shared line with the
user's directory number (DN). The call to the colleague's IP phone is presented as being
from the DN of the user's IP phone. This functionality also allows the user to call in to the
Cisco Unity Connection voice-messaging system and have Easy Message Access to his
personal mailbox (which is associated with the DN on his IP phone).
Note:
Most implementations of Mobile Connect use access codes for remote destina-
tions. If this is the case, some digit manipulation of the incoming ANI may be necessary to
match the entire Remote Destination Profile number pattern. Alternatively, the
CallManager Service Parameter
Matching Call ID with Remote Destination
can be set to
