Your customer had three physical site surveys and the following was determined: Site A has all the messaging servers for the entire company, and a Cisco Unity V4.2-supported TDM PBX and 300 users. Sites B and C have a Cisco Unity V4.2-supported TDM PBX, but not the same PBX as Site A, and both sites have 150 users. Your customer needs unified messaging for the users at Site A, and they want the messaging servers at Site A to be the mailstore for the Unity server or servers.Select the true statement from the choices below.

A.
You will need three Unity servers; one for each site. Cisco Unity can integrate with only one TDM switch and a CCM in dual integration mode. You will need to install Exchange “on box” for the users at Sites B and C.

B.
You will need two Unity servers: one for Site A, and one to cover the users at Sites B and C. Cisco Unity can integrate with only two PBXs at a time. You will need to install Exchange “on box” for the users at Sites B and C.

C.
You will need one Cisco Unity server at Site A. You will use PIMG units to integrate the three TDM PBXs.
The Cisco Unity server will use the mailstore at Site A for all the users.

D.
You will need three Cisco Unity servers; one at each site. You can use the mailstore at Site A, but Cisco Unity needs to be next to the TDM PBX to use PIMG units for integration.