In which three of the following cases can VPIM Networking be used for messaging? (Choose three.)
A. Cisco Unity systems where the partner Microsoft Exchange Servers are in different Active Directory forests
B. Cisco Unity with Microsoft Exchange 2000 or Microsoft Exchange 2003, and Cisco Unity with Lotus Domino
C. Cisco Unity and Cisco Unity Express
D. Cisco Unity and the Cisco Presence Server
E. Cisco Unity and Cisco Unified Communication Manager
F. Cisco Unity and Cisco Unified Contact Center Express
