The Spirent TTCN‑3 technology, now part of VIAVI, provides a standardized, automation‑ready testing framework developed by ETSI for certification and complex system validation. TTCN‑3 is a powerful, widely adopted testing language used across mobile communications, industry, research, international projects, and academia since 2000. It supports diverse application domains, enabling consistent, repeatable, and automated test execution. As part of VIAVI, this technology continues to deliver the only fully standardized approach for advanced test automation, helping organizations streamline testing processes and ensure compliance with evolving communication standards.

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