ZoomAir Wireless LAN Products Earn Wi-Fi Wireless Fidelity Certification from WECA

Boston, MA, April 17, 2000 - Zoom Telephonics Inc., (NASDAQ: ZOOM), today announced that its first two tested 11 Mbps wireless LAN products have passed the Wireless Ethernet Compatibility Alliance (WECA) test suite. The tested products were the ZoomAir Wireless Network Interface Card (NIC) and ZoomAir Access Point Software.

The ZoomAir products successfully interoperated with a wide range of IEEE 802.11b 11 Mbps wireless networking products from a number of manufacturers. The approved Zoom products will display the Wi-Fi logo to certify interoperability. In the words of WECA, the Wi-Fi logo "represents proven technology and offers wireless connectivity at speeds up to 11 Mbps. It is ideally suited for wireless networking applications in the home or office."

"Zoom is proud to have products certified in the first wave of WECA's Wi-Fi testing," said Frank Manning, president of Zoom Telephonics. "Standards and interoperability drive high volume because they assure customers of a wide range of competitive solutions. Zoom is committed to having a broad line of Wi-Fi products, including a range of NICS, antenna options, hardware and software access points, and building-to-building bridges. Zoom is uniquely able to integrate these products into a broadband strategy. No other company is as focused on the issue of distributing broadband Internet access through advanced networking products, including wireless."

The successful testing of the ZoomAir products was conducted at the Silicon Valley Network Labs (SVNL) in San Jose, California, an independent testing facility contracted by WECA.

About Zoom Telephonics

Zoom Telephonics, a communications leader since 1977, designs, produces and markets dial-up and broadband modems, wireless LAN products, home phoneline networking devices, and other data communication products under the Zoom and Hayes brand names. Zoom products are available in over 3000 of the highest volume computer retailers in the USA and over 5000 retail outlets worldwide. Zoom Telephonics is publicly traded on NASDAQ (NASDAQ: ZOOM).

For more information, please visit Zoom at www.zoomtel.com

Press Contact:
Dan Brunelle
brunelle@zoomtel.com
617-753-0060

Disclaimer: This press release contains forward-looking information relating to Zoom's plans, expectations and intentions. Actual results may be materially different than those expectations as a result of known and unknown risks, including those set forth below. Acquisitions involve numerous risks, including difficulties in the assimilation of operations and products of acquired businesses, the ability to manage geographically remote units, and the potential loss of key employees of the acquired companies. In addition, the technologies and businesses being acquired by Zoom are subject to the significant risks and uncertainties generally applicable to modem and data communications products, including rapid technological change and intense competition, uncertainty of new product development, uncertainty of component availability, early stage of development of certain data communications markets, uncertainty of market growth, as well as other risks set forth in Zoom's filings with the Securities and Exchange Commission. Zoom cautions readers not to place undue reliance upon any such forward-looking statements, which speak only as of the date made. Zoom expressly disclaims any obligation or undertaking to release publicly any updates or revisions to any such statements to reflect any change in Zoom's expectations or any change in events, conditions or circumstance on which any such statement is based.