New Antennas Extend the Range of Zoom's Wireless LAN Products
Now Shipping Companion Antennas to ZoomAir Wireless Network Interface Cards

Boston, MA, November 9, 1999 - Zoom Telephonics, Inc. (NASDAQ: ZOOM) is shipping a new line of antennas which extend the range and increase the throughput of a ZoomAir wireless local area network (LAN). New antenna products include Omni-directional, Directional and Dipole models which can provide LAN connections at distances of up to one mile (1.6 km).

ZoomAir Wireless LAN products provide high-performance, high-speed networking without wires. Using IEEE standard 802.11 DSSS technology, ZoomAir provides a 2 Mbps data rate and reliable, secure data communications. ZoomAir can be used as an easily-installed primary network, or as a valuable addition to a wired network.

The ZoomAir 4.0 dBi Omni-Directional Antenna (Model #98110-04) can be mounted on a ceiling for use as an omni-directional antenna, or mounted on a wall to provide increased range in a single direction. Typical range of a ZoomAir NIC and the Model 98110-04 antenna when mounted on a ceiling is a radius of 380 feet (115 m) in a partitioned office and 1275 feet (390 m) in an unobstructed environment. When mounted vertically, the directional range is approximately 450 feet (135 m) in a partitioned office and 1500 feet (455 m) in an unobstructed environment. The suggested retail price of the Model 98110-04 antenna with mounting hardware is $98.

The ZoomAir 13.0 dBi Directional Antenna (Model #98110-13) provides a range of up to one mile (1.6 km) for point-to-point applications. This antenna is typically used to link two line-of-sight computers or a ZoomAir Access Point and a remote computer. It can be used either indoors or outdoors. The suggested retail price of the Model 98110-13 antenna with a heavy-duty mounting bracket is $180.

The ZoomAir Model #4007 Wireless Network Interface Card (NIC) comes equipped with a 3.25 inch long, 2.2 dBi Dipole Antenna. When compared to the integrated antenna of the Model 4000 and 4005 ZoomAir NICs, the dipole antenna provides more uniform coverage and up to 30% greater range. The suggested retail price of the Model 4007 ZoomAir NIC is $249.

External ZoomAir antennas are easily installed by simply replacing the dipole on the Model 4007 NIC with a Directional or Omni-Directional antenna in a simple plug-out/plug-in operation. One-meter and three-meter length low-loss coaxial cables are available to provide additional flexibility in the placement of the external antennas. Joining cables allows the length to be extended to a maximum of six meters.

ZoomAir external antennas are approved for use in the United States and Canada.

Zoom's Web Site contains detailed technical specifications on Zoom's complete line of ZoomAir's Wireless LAN products. These products are available through major distributors and value-added resellers.

Zoom Telephonics, a communications leader since 1977, designs, produces and markets faxmodems, wireless LAN products, Home Phoneline Networking devices, ISDN products and other 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 Telephonics is publicly traded on NASDAQ (NASDAQ: ZOOM). Zoom products are marketed under the Zoom and Hayes brands and sold worldwide.