Why is this happening and how is it fixed?

Refer to the exhibit.

Calls to Cisco Unity Connection are failing across Cisco Unified Border Element when callers try to select a menu prompt.

Why is this happening and how is it fixed?
A . Cisco Unity Connection is configured on G.729 only. Cisco Unity Connection must be reconfigured to support iLBC.
B. Cisco Unified Border Element is not sending any support for DTMF. OTMF configuration must be added to the appropriate dial peer.
C. Cisco Unified Border Element is sending the incorrect media IP address. The IP address of the loopback interface must be advertised in the SDP
D. The Cisco Unity Connection Call Handler is configured for a "Release to Switch" transfer type Transfers must be disabled for the Cisco Unity Connection Call Handler

View Answer

Answer: B