For Cisco Unity Express to send message notifications to external telephony devices, what must be configured?
A. Cisco Unity Express must be integrated with an external IMAP client.
B. The integrated Cisco Unified Communications Manager Express voice-mail solution must be configured for PSTN access.
C. Each individual or group must have the notification profile set to forward urgent messages.
D. The default profile name vm-notif-profile needs to be changed to reflect the name of the new notification profile.
