A Cisco Unity Connection Administrator must set a voice mailbox so that it can be accessed from a secondary device.
Which configuration on the voice mailbox makes this change?
A . Mobile User
B . Alternate Names
C . Attempt Forward routing rule
D . Alternate Extensions
Answer: D
Explanation:
If you elect to make changes to the Cisco Unity system, there are two options available:
– Call Routing Rules (available in all Cisco Unity versions)
– Using the Alternate Extension feature (available in Cisco Unity 3.0 and later).
https://www.cisco.com/c/en/us/support/docs/voice-unified-communications/unity/41600-2-ip-phones-1-mbox.html#ts1