A compnay has deployed a combination of Cisco VT Advantage cameras and H.323 video room systems. The Cisco VT Advantage camera users are complaining that many conferences are setting up as audio only. Which configuration parameter needs to be changed to resolve this videoconference issue?

A.
The MRGL that is assigned to the device pool for only IP phones should not include the video MCU.

B.
The MRGL that is assigned to the H.323 video room systems should use the same MRGL as the IP phones, but have the MCU as the first resource.

C.
The MRGL that is assigned to the H.323 video room system should use an empty capabilities set.

D.
The MRGL that is assigned to the IP phone should include the empty capabilities set.