INNOVATIVE ZOOM V.92 PROGRAM PRAISED BY ISP'S

Boston, MA, July 18, 2002 — Zoom Telephonics, Inc. (NASDAQ: ZOOM) announced today that Internet Service Providers are receiving a welcome assist from Zoom Telephonics. Zoom's ISP Program provides technical and marketing assistance to the providers which have taken an early lead in introducing the new standard. With the program, ISP's have found they can quickly qualify V.92 performance and use the new service as a customer acquisition tool and a source for new revenue.

Elements of the Program include:

• Evaluation units and preferred technical support
• Cooperative advertising funds for V.92 promotion
• Creative modem sales programs tailored for ISP's

The program has received high praise from participants.

"With Zoom's program, I was able to test, qualify and approve V.92 modems with my head end equipment before working with Zoom on a marketing launch.", said Joel Duetterman, President of Velocity, a Pennsylvania ISP with 10,000 subscribers. "As a result, I've signed on thousands of new customers to new annual contracts and taken market share from my largest competitor."

"I never expected this level of support from a manufacturer", said Don Crowley, President of CNY Internet, a New York ISP. "This should allow us to become the first ISP in our area to support V.92 features like Modem on Hold. This allows us to compete for second line payments now going to the telephone company as well as allowing us to aggressively compete with larger ISP's."

Zoom has done extensive interoperability testing with all major manufacturers of head end equipment. Experienced technicians have been assigned by Zoom to share setup information and the results of Zoom's interoperability experience with ISP's.

Advertising programs offered by Zoom can be used by ISP's to reduce the cost of advertising V.92 service. Service Providers receiving the ad funds are required to recommend Zoom Modems.

ISP's who choose to sell modems can either purchase modems directly from Zoom, purchase through Zoom distributors, or use a virtual storefront which eliminates the expense of shipping, warehousing and order fulfillment. By selling Zoom modems to subscribers, an ISP controls the quality of the customer's equipment to ensure a satisfactory customer experience with V.92. In addition, Zoom protects the existing ISP customer base with special modem packages that do not contain sign-up offers from competing Internet services.

For additional Zoom ISP Program information, please see:

http://www.zoomtel.com/partners/isp.html

About Zoom

Zoom Telephonics, a communications leader since 1977, designs, produces and markets dial-up modems, cable and ADSL modems, wireless LAN products, home and small office networking devices, and other data communication products under the Zoom, Hayes and Global Village brands. Zoom products are available in thousands of the highest volume computer retailers worldwide. For more information visit Zoom at www.zoomtel.com.