You work as a network consultant at YourDomain .com. One of your clients is planning to use IP Telephony. They are looking for an integrated suite of software solution that provides a flexible infrastructure for managing customer service.
Which should you suggest?

A.
Use Cisco CallManager.

B.
Use Cisco IP Contact Center (IPCC).

C.
Use Cisco Conference Connection.

D.
Use Cisco Integrated Communication System (ISC) 7750.