Users report dropped calls. A network engineer is asked to troubleshoot Cisco Unified Communication Manager to view concurrent calls and dropped calls. Where are such reports generated?

Cisco Call Manager Administration is the configuration interface for managing devices, dial plans, and system settings - it does not provide call reporting or monitoring dashboards.

Cisco Unified Reporting generates static system health and configuration reports for support and inventory purposes, not real-time concurrent call or dropped call metrics.

Cisco Unified RTMT provides real-time dashboards and alert capabilities that display live telephony metrics including active calls, calls attempted, and calls dropped. It connects directly to UCM's performance counters and allows engineers to monitor and troubleshoot call activity as it occurs. RTMT is the designated tool for this type of operational, real-time call statistics monitoring.

Cisco Unified Serviceability is used for activating and managing services, setting trace levels, and viewing alarm definitions - it does not provide real-time call volume or dropped call reports.