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.

Explanation:
http://www.cisco.com/en/US/products/sw/voicesw/ps2237/products_tech_note09186a0080711ae3
shtml#topic1