Refer to the exhibit.
Which of the following statements is true about the remote users that are configured in the exhibit?
A. Remote users must always be added when configuring VPIM on Cisco Unity Express.
B. Remote user configuration is optional for VPIM. It is only necessary if VPIM networking is implemented between a Cisco Unity Connection and CiscoUnity Express systems.
C. Remote users are needed if the dial-by-name feature is required.
D. Remote users are needed if VPIM implementation is required between Cisco Unity Express and a third-party voice-mail system that supports VPIM.
