In an MCU call with three Cisco TelePresence MX800 systems and a mobile phone calling in, the three TelePresence MX800 systems suddenly experience low audio levels, but the mobile phone audio levels are correct.
What can you do to correct this issue?
A . Turn off the audio processors on the TelePresence MX800.
B . Use the mobile phone audio option on the TelePresence MX800 to adjust the mobile phone levels.
C . Mobile phone audio levels can vary, so you cannot correct the issue.
D . Turn on AGC on the MCU to adjust the audio levels.
E . Turn on ALG on the MCU to adjust the audio levels.
F . Turn on the Auto Adjust levels under "Settings > Audio" on the MC
Answer: D