A Cisco 5310 MCU is being configured as an ad hoc conference bridge in Cisco Unified
Communications Manager. Which two configuration steps must be completed for this to
function correctly? (Choose two.)

A.
Enable Media Port Reservation on the MCU.

B.
Disable H.323 and enable SIP on the MCU.

C.
Create a SIP trunk from Cisco Unified Communications Manager to the MCU.

D.
Install the Cisco Unified Communications Manager feature key on the MCU.

Explanation: