Service-Based Testing Framework for EPC Core

To address the client's needs, we implemented a Service-Based Testing Framework tailored specifically for IMS Core testing. Our approach focused on the following elements:

 

Custom Test Scenarios for IMS Core:

• Developed custom scenarios for VoLTE, VoWiFi, video calling, and IP-based messaging to cover real user experiences.

• Created test cases for both standard and supplementary services (e.g., call waiting, forwarding, three-way calling).

 

Comprehensive Protocol Testing:

• Validated IMS protocol interactions (e.g., SIP, Diameter) to ensure efficient session initiation and accurate media exchange.

• Simulated complex call scenarios, including handovers and roaming, using detailed protocol-level verification.

 

Automated Load Testing Suite:

• Built an automated load testing suite to simulate high traffic, using tools like Viavi to mimic simultaneous users initiating sessions and maintaining calls.

• Analysed key performance metrics, including session setup time, voice quality (jitter, packet loss), and call success rates under varying network conditions.

 

Integrated Failover and Resilience Testing:

• Simulated network outages and hardware failures to assess failover protocols and IMS Core’s ability to reroute calls.

• Validated backup procedures and recovery times to ensure uninterrupted service during potential network disruptions.

 

Security Assessment:

• Conducted security vulnerability scans and penetration tests to detect possible IMS-related security issues.

• Focused on data integrity, user authentication, and session encryption to protect user privacy and prevent unauthorised access.

 

Real-World Scenario Testing:

Simulated real-life user interactions and edge cases, such as roaming, out-of-coverage scenarios, and network handovers