The operations manager of a potential customer is concerned about implementing a VoIP solution because of the possibility of interoperability issues with existing equipment. Which differentiator would be most appropriate to position a Cisco IP Communications solution against competitors?
A.
An IP-enabled PBX does not offer “five nines” availability. A Cisco IP Communications solution must integrate with existing legacy equipment that has 99.999 percent availability.
B.
A Cisco IP Communications solution offers investment protection for a large installed base, as well as retention of legacy equipment.
C.
Proprietary software and IP phones are often used to enable an existing PBX system for IP- based communications, locking the customer into using specific products indefinitely. With a Cisco solution, PBX-enabled devices can be used on the network.
D.
Cisco IP Communications solutions are based on tested and verified designs that ensure the tight integration of all equipment and applications, enabling customers to migrate slowly to complete convergence and retain legacy equipment and existing applications.