Harmonic’s ProStream 2000 digital video splicer has successfully completed conformance testing for real-time splicing of national MPEG-4 AVC (H.264) video streams of the Microsoft Mediaroom IPTV platform. A key component of Harmonic’s IP-based advertisement insertion solution, fully compliant with the SCTE 35 and SCTE 30 standards, the software-based ProStream 2000 platform offers scalability and is designed to be easily integrated into an IPTV operator’s network.

The test was administered by Microsoft as part of the company’s Mediaroom Interoperability and Qualification Lab (IQ Lab) program, which is intended to enable the ongoing interoperability and compliance of headend equipment used in deployments of Microsoft Mediaroom. A long-standing Microsoft Mediaroom ecosystem partner, Harmonic powers the video headends for a majority of Microsoft Mediaroom’s customers worldwide.

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AT&T Sees Growth in Fiber, Internet Air

It’s once again time for companies to report their quarterly earnings, and AT&T had the honor of being the first among the Big 3 carriers to give an update on how 3Q25 went.

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