Summary

Recommendation ITU-T Q.3951 describes the real-time Internet Protocol (IP) based on the ITU‑T T.38 supporting facsimile service testing framework at the user-to-network interface (UNI) in next generation networks (NGNs). This Recommendation defines the preparation for NGN multimedia service testing, physical configuration, test scenarios and test report production. The real-time IP based on the ITU-T T.38 supporting facsimile service defined in this Recommendation covers services including facsimile (ITU-T T.38) and voice over IP (ITU-T G.711) communication. The test check sheets described in clause 7.1 are useful for NGN operators, service providers and vendors when testing their services or products.