Spirent Collaborates with Signals Research Group on a Comparison of IR.94 Video Telephony with Competing Over-The-Top Technologies
Sunnyvale, Calif.– (Apr 9, 2015) — Spirent Communications, the leader in testing networks, services and devices, announced today that it has collaborated with the Signals Research Group (SRG) to complete the industry’s first benchmark study that compares video telephony using IR.94 with Over The Top (OTT) applications including FaceTime, Skype, Google Hangout amongst others. The study involved conducting more than 200 tests on one of the biggest commercial networks in North America. Focusing on the user experience, this study compared various KPIs that affect video telephony performance, including frame impairments, video freezes, Audio/Video synchronization problems, and current drain for all of the video chat applications. Spirent’s Chromatic Video Experience and Quantum Battery Life Measurement Systems were used to collect field data and generate the KPIs.
The key findings of this study are:
The study also reaffirmed earlier SRG work with Spirent, indicating that all OTT best-effort voice and video applications are severely impacted by network congestion and background applications running on the smartphone.
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