Private company

Telebit

Logo: Telebit Incorporated, Public domain, via Wikimedia Commons3

Defunct US modem manufacturer

Telebit Corporation was a US-based modem manufacturer, known for their TrailBlazer series of high-speed modems. One of the first modems to routinely exceed 9600 bit/s speeds, the TrailBlazer used a proprietary modulation scheme that proved highly resilient to interference, earning the product an almost legendary reputation for reliability despite mediocre (or worse) line quality. They were particularly common in Unix installations in the 1980s and 1990s.2 It was founded by Paul Baran.1 Wikipedia text CC BY-SA 4.0

Last updated Oct 21, 2026.

Overview

Jan 1, 1984Founded1
  • Industrytelecommunications1
  • HeadquartersChelmsford1

Telebit Corporation was a US-based modem manufacturer, known for their TrailBlazer series of high-speed modems. One of the first modems to routinely exceed 9600 bit/s speeds, the TrailBlazer used a proprietary modulation scheme that proved highly resilient to interference, earning the product an almost legendary reputation for reliability despite mediocre (or worse) line quality. They were particularly common in Unix installations in the 1980s and 1990s.2

The story

Founded by Paul Baran on Jan 1, 1984.1

Leadership

Who has led Telebit, and when. Pick a name to see everywhere that person has worked.

Acquisitions

The CCITT moved quickly to improve on V.32bis, and by 1993 it was clear that the ratification process for their new 28,800 bit/s V.34 standard was going to be finalized in 1994. Companies lined up to start production of new V.34 designs, some going so far to introduce models based on interim standards, such as V.FC.

Telebit's modem engineering team developed a plan for a V.34 modem, but the executive staff believed that it was important to get a product to market more quickly. To that end, they began looking for other modem companies to acquire, and in January 1993 announce that Telebit would acquire Octocom Systems, a small privately held modem company in Massachusetts. Octocom had a V.34 modem in development which was expected to be ready for shipment quickly. Almost all modem engineering activities at Telebit's California offices ceased, though NetBlazer engineering continued to be based in California until the end of 1995.

The Telebit FastBlazer 8840 V.34 modem was introduced in May 1994. When the FastBlazer was first introduced it did not include V.34 support, with management stating that they couldn't do so because the standard was not yet ratified. Although this was true (for one month anyway, it was ratified in June), the FastBlazer did not ship with an interim standard either; even AT&T's largely ignored 19,200 bit/s V.32terbo would only be available as a post-release upgrade in July, there were no plans to support the widespread V.FC at all, and no date was set for full V.34 support other than "two or three months".

Making matters worse, the FastBlazer didn't include fax support. While Telebit stated that an upgrade to add this would be available, they also stated they would be charging for it. Nor would the FastBlazer support PEP, which, although by then a minor consideration for most potential buyers, was still a differentiator for Telebit's existing installed base. For sites with a Telebit modem on at least one end of a link, a PEP-capable upgrade might be worthwhile. Without PEP, the FastBlazer had essentially no advantage over any other V.34 modem.

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All this for an introductory price of $1,399, when V.32bis faxmodems were available for $200 or less, and industrial-quality V.34 designs were soon available for under $500.

It took seven months before Telebit introduced V.34 support in January 1995, also releasing the $399 TeleBlazer "low-end" model at the same time. By this point even long-time supporters were publicly pooh-poohing the company on the Usenet, the medium that originally drove the widespread adoption of the TrailBlazer.

From Wikipedia’s article on Telebit, shared under CC BY-SA 4.0.4

Timeline

  1. Jan 1, 1984Founded Founded1

Sources

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