Refer to the exhibit. Your company needs to exchange voice messages with a supplier using VPIM. You are asked to provide “dial by name” and you want to maintain your internal 5-digit dialing plan. You add VPIM subscribers using a 5-digit extension and a 5-digit remote mailbox number. Because the voice-mail system of your supplier supports only blind addressing, they want to use the full DID number to send messages to you.
Which prefix should be configured in Cisco Unity server VPIM delivery location?

A.
Cisco Unity Prefix=23

B.
Cisco Unity Prefix=40823

C.
Remote Cisco Unity Prefix=78

D.
Remote Cisco Unity Prefix=91978