Zoom® Now Shipping K56flex™ PC Cards
Includes Rockwell L1900 series Controller for fastest file transfers

Boston, MA, August 18, 1997 - Zoom Telephonics, a leading manufacturer of faxmodems and other wide area network PC communications products, announced today that it has begun shipping the Zoom/PC Card™ 56K FaxModem.

Zoom's Rockwell-based 56K PC Card features flash memory for both the Digital Signal Processor (DSP) and the Controller. This allows software upgrades for feature enhancements and new standards.

The Zoom/PC Card 56K FaxModem features a Rockwell L1900 series Controller, which has a clock speed of 28.224 megahertz - twice as fast as the L1300 series Controller used in some competitive K56flex PC cards.

"We waited to ship until we could use the latest Rockwell Controller," said Frank Manning, Zoom's President and CEO. "The higher speed produces more data throughput, particularly with compressible files and bi-directional data transfers, and also helps assure high performance with future standards."

The Zoom/PC Card 56K FaxModem is a Type II PCMCIA card that weighs only 1.25 ounces. It has a slim cord, rugged connector design, built-in DAA, MNP 10EC™ Enhanced Cellular™ Technology, and battery-conserving circuitry.

The PC Card 56K can be used with a notebook, palmtop, PDA, or any computer with a compatible PCMCIA slot for use in the office and on the road. Its phone cord plugs directly into a modular phone jack. In addition, it can communicate "wireless" by plugging into a cellular phone. Phone-specific adapter kits are available from Zoom for most popular cellular phones (Cellular speeds are typically slower than those achieved over landlines.).

The Zoom PC Card 56K incorporates K56flex technology from Rockwell. K56flex is also supported by Lucent, and is backed by central site equipment manufacturers representing about 70% of the installed base of central site modem ports. In addition, over 2,700 Internet Service Providers in the U.S. alone have announced that they are supporting K56flex.

Zoom's 56K products typically achieve download speeds from 42 Kbps to 54 Kbps when connecting to K56flex central sites. PC Cards using the competing 56K technology, x2, will not realize a speed beyond 33.6 Kbps when connecting to an ISP supporting only K56flex.

The Zoom/PC Card 56K FaxModem features advanced ZoomGuard™ lightning protection, to protect against the most common cause of modem field failures.

The PC Card 56K is available for use with both PC (Model 2875) and Macintosh (Model 2876) computers. Communications software for DOS and Windows® or for Macintosh is included.

The MSRP (Manufacturer's Suggested Retail Price) of the Zoom/PC Card 56K FaxModem is $229. It is available in computer retail stores and mail order catalogs. For more information about the Zoom/FaxModem PC Card 56K or other products manufactured by Zoom, call Zoom toll-free at 1-800-631-3116 or visit the Zoom web site at www.zoomtel.com

Zoom Telephonics designs, produces, and markets products that link people and their personal computers through the world's largest network, the international telephone network, and connected networks including the Internet and corporate local area networks. Zoom products are produced in Boston, Massachusetts and sold worldwide. Zoom Telephonics is publicly traded on Nasdaq (NASDAQ: ZOOM).