You are working with an organization that is planning to deploy Cisco CallManager at its headquarters. The organization also has 15 remote offices around the country. The remote offices have a variety of telephony equipment. The organization would like to deploy a solution that will allow it to deploy IP telephony today at the branch offices and migrate to a centralized CallManager solution in the future.
Which solution would you propose?
A.
Deploy SRST and convert it back to CME at each site when the centralized CallManager solution is ready to deploy.
B.
Deploy small CallManager clusters at each location.
C.
Deploy Cisco CallManager Express at each location now and convert the solution to SRST when the centralized CallManager solutions is ready to deploy.
D.
Deploy Cisco routers and connect the existing telephony equipment to each router so that the voice and data networks can be converged.