Why would an endpoint stop sending 720p in a call with a Cisco TelePresence MCU?
A. The endpoint Ethernet speed renegotiated at half-duplex.
B. The Cisco TelePresence MCU is using video to receive bit rate optimization to request a lower bandwidth.
C. Another endpoint joined the conference, which brought the conference rate down.
D. Another endpoint failed in its negotiation with the Cisco TelePresence MCU.
