Cable Labs is enabling full-duplex phone calls over cable lines.
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New cable broadband specs promise 10 Gbps speeds upstream and downstream

  • Posted byby Dean Takahashi
  • Updated
  • 2 min

CableLabs, the research arm of the cable TV business, is announcing today that it is enabling full-duplex speeds on cable-delivered internet services. That means that your upload streams — which have typically been a lot slower — will be just as fast as your download streams.

The CableLabs technology works on hybrid fiber-cable (HFC) networks, which deliver high-speed data, video, voice, and other services. CableLabs has completed a specification for Full Duplex DOCSIS 3.1, the standard for cable modem internet delivery.

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Written by

Dean Takahashi

Dean Takahashi is editorial director for GamesBeat. He has been a tech journalist since 1988, and he has covered games as a beat since 1996. He was lead writer for GamesBeat at VentureBeat from 2008 to April 2025. Prior to that, he wrote for the San Jose Mercury News, the Red Herring, the Wall Street Journal, the Los Angeles Times, and the Dallas Times-Herald. He is the author of two books, "Opening the Xbox" and "The Xbox 360 Uncloaked." He organizes the annual GamesBeat Next, GamesBeat Summit and GamesBeat Insider Series: Hollywood and Games conferences and is a frequent speaker at gaming and tech events. He lives in the San Francisco Bay Area.