You work as the network administrator at YourDomain.com. The company is running Cisco 2800 Series Integrated Services Routers with a Cisco Unity Express Advanced Integration Module at various branch offices. Although there are enough mailboxes, and number of allowed mailboxes has not been reached the limitation, however, the company is thinking about running out of voice mailboxes because of an expected 40 percent growth across branches.

What should you recommend to the company?

A.
Migrate to Cisco Unity.

B.
Upgrade the Cisco IOS software.

C.
Upgrade to Cisco 3800 Series Integrated Services Routers.

D.
Swap Cisco Unity Express Advanced Integration Module with a Cisco Unity Express Network Module.