Which troubleshooting tool is the most effective to display detailed real-time output of call setup on
phones that are registered to a Cisco Unified Communications Manager cluster?

A.
Implement DNA to create trace files.

B.
Implement RTMT to create trace files.

C.
Integrate an MGCP gateway with a Cisco Unified Communications Manager cluster to redirect
trace files to the MGCP gateway.

D.
Create trace files from Cisco Unified Reporting.