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Announcing TurboCell Software Upgrade

Columbus, OH - December 31, 1999

KarlNet, Inc. announced today an upgrade to TurboCell, the most widely used protocol for fixed wireless Internet Service Provider networks, to be available first quarter 2000. The high-speed TurboCell protocol (formerly known as CellWave) been extended to provide better security, throughput, and management capabilities for wireless Internet Service Providers.

Built on KarlBridge software in use in over 100,000 systems worldwide, with the largest install base of fixed wireless Internet Service Provider networks, KarlNet's ISP software effectively supports wireless ISP connections in outdoor Point-to-Multipoint environments. The TurboCell protocol brings its incredible throughput improvements even in networks where none of the wireless clients detect each others' transmissions, which is crucial for the wireless ISP.

TurboCell is an extension of the IEEE 802.11 standard, running on standard 802.11 hardware such as Lucent's WaveLAN platform. The use of hardware meeting international standards allows ISP's to capitalize on decreased hardware costs, and focus on the core of their business: providing service.

For commercial Internet Service Providers, network security and management is critical to the survival of their business. KarlNet has integrated existing security protocols into TurboCell in exciting new ways to create a strong security model designed especially for wireless ISP's.

In addition to the advanced security mechanisms already built into their exclusive TurboCell protocol, KarlNet has added MAC Address and Username/Password authentication of wireless users, with centralized management via standard RADIUS servers already in use at ISP's around the world. KarlNet also has added an exclusive bandwidth throttling mechanism that allows ISP's to limit and bill clients for their shared portion of the wireless bandwidth.

Unlike a standard IEEE 802.11 Access Point, in which each wireless user is on a private LAN with every other wireless user, KarlNet's ISP Software enables service providers to block protocols and transfers between specific systems over the wireless link!

In all, KarlNet's exclusive technology provides added security, authentication, and management capabilities not available with other wireless technologies, at unprecedented throughput using 11 Mbps radios!

To learn more about KarlNet's products for Wireless ISP's, visit KarlNet's website at www.karlnet.com, or send email to info@karlnet.com.


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