Verify end-to-end call flows for MCPTT, MCVideo, and MCData. Validate group communication, priority and pre-emption, emergency calls, and late join/rejoin scenarios. Test UE behavior in various network states (idle, connected, handover).

Simulate high user loads for group and private calls. Measure latency, jitter, packet loss, and call setup times under stress. Evaluate Quality of Experience (QoE) for mission-critical traffic.

Validate compliance with 3GPP MCX specifications (Release 13 and beyond). Ensure protocol correctness, security procedures, and interface compatibility. Certification assistance and test case coverage reports.

Test multi-vendor environments across devices, servers, and networks. Ensure seamless operation between MCX components (MCPTT server, EPC, IMS core, etc.). Interop with legacy systems like TETRA, DMR, or LMR.