Refer to the exhibit. Regions have been configured for all major branches based on the available circuit bandwidth. Some calls from Region A endpoints to Region B endpoints are failing to connect. How is the issue resolved?
A. Update the calling search space for affected endpoints to none.
B. Update all regions to 8 kbps maximum audio bitrate.
C. Increase the number of available media termination points.
D. Add a media resource to transcode between available capabilities.
