A company has migrated to a Cisco Unified CallManager IP Telephony system and is now replacing the existing voice-mail system with a Cisco Unity voice-mail system. A small group of users has been established to test the new voice mail system. The users were able to initialize their mailboxes and record greetings; however, during testing the callers were sometimes unable to leave voice-mail messages for Cisco Unity users.
Which two issues could cause this problem? (Choose two.)
A. There is a mismatch in the number of ports configured in Cisco Unified CallManager and Cisco Unity.
B. There is a mismatch in the MWI on/off numbers configured in Cisco Unified CallManager and Cisco Unity.
C. The call transfer call handlers are not configured correctly.
D. Cisco Unity is in a G.729 region and has not been configured to support G.729.
E. The hunt group is hunting to Cisco Unity ports that have been dedicated for message notification.
