Refer to the exhibit. You have received UCM SDI trace from a client who is having issues with conference calls. Based on the information in the trace file, what could be the possible cause of conference failure? (Choose three)
A. Conference Bridge only supports G711
B. Transcoder is missing in MRGL
C. Region relationship is null between Conference Bridge and phones
D. Region relationship is set to G729 between Conference Bridge and phones
E. Conference bridge capabilities count is 0
F. Media termination point is missing from MRGL
ABC