A large IT consulting firm with 400 employees currently handles large volumes of voice, e-mail, and fax messages by using several different applications. Which Cisco solutions would be most appropriate to recommend making it easy to handle all of the messages, whether users are in the office or traveling?

A.
Cisco Unity Express

B.
Cisco Unity Unified Messaging

C.
Cisco XML applications

D.
Cisco IP Contact Center

E.
Cisco IP telephony