ARDIS Begins Shipping New Lan-Based E-Mail Software; First Wireless Data Network to Offer Solution for Microsoft Mail and Lotusr cc:Mail Applications; Supports New Motorola Envoy 150 Wireless Communicator.

LINCOLNSHIRE, Ill.--(BUSINESS WIRE)--April 1, 1996--ARDIS today announced the immediate availability of Mail on the Run!, a wireless solution developed by River Run Software Group that provides remote access to LAN-based electronic mail systems, allowing mobile professionals to easily access their corporate electronic mailboxes while away from the office. Operating over the ARDIS nationwide wireless data network, the software enables mobile professionals to extend two of the most popular electronic mail applications, Microsoft Mail and Lotus cc:Mail, to send and receive messages from virtually any location.

Mail on the Run! software supports the new Envoy 150 device, the next generation wireless communicator announced today by Motorola. The device features an upgraded operating system, enhanced memory and a screen enhanced by a holographic reflector.

"ARDIS is committed to bringing wireless users the mainstream applications they use back at the office," said Dan Croft, senior vice-president, Marketing Operations at ARDIS. "Mail on the Run! brings the most popular e-mail applications conveniently into the domain of the mobile worker. Mail on the Run! quickly extends a worker's corporate mailbox to virtually anywhere."

"E-mail has changed the way we keep in touch with the world," said Trilok Manocha, president of River Run Software Group. "Being out of the office should not mean being out of `the loop.' Mobile professionals want, and need, to stay in touch with their office LAN e-mail. Our joint effort with ARDIS gives users a single portable mailbox and an easy to use application, all the while driving the evolution of PDAs into powerful, valuable business tools that improve the productivity of the mobile work force."

According to John Sclafani, president and CEO of Wireless World, Bloomingdale, Illinois, a reseller of high-end wireless voice and data equipment, "Combining the proven network coverage of ARDIS and its commitment to customer service with the ease of use of this new software will speed working solutions into the hands of mobile professionals."

Mail on the Run! Features

With Mail on the Run! software, users can wirelessly send, receive, store, forward and reply to messages on their corporate standard e-mail systems, retaining their LAN mailbox and ID. The software includes filtering capabilities that allow e-mail users to collect only those messages that they want to retrieve. Additionally, it provides access to their mail system's Internet gateway. Optimized for wireless environments, Mail on the Run! also includes encryption and data compression capabilities that provide security and cost- efficient messaging.

Mail on the Run! is designed on a "client/agent/server" model. Its client software runs on MagicCap-based systems, such as Motorola Envoy Wireless Communicators, and Newton-based systems, such as Motorola Marco Wireless Communicators. The software takes advantage of these systems' intuitive user interfaces to offer an easy-to-use application that can be quickly installed.

The Mail on the Run! agent software provides remote access to e-mail systems and can reside on either a Microsoft Windows 3.1 desktop, supporting up to ten wireless users, or on a Microsoft Windows NT server, supporting many more wireless users. The Windows 3.1 desktop or Windows NT server, with the agent software, uses standard connectivity to a local area network (LAN) that includes the server-based e-mail system. Mail on the Run! also includes other connectivity options that allow users to access their e-mail wherever they go, even internationally.

Pricing and Availability

Mail on the Run! software for wireless environments will be distributed in bundled solutions exclusively by ARDIS as part of its suite of Mobile Office solutions, providing the convenience of one-stop shopping for airtime, hardware, software and support services. ARDIS will offer Mail on the Run! in single and 5-user starter kits along with other bundled packages that include hardware, software, ARDIS airtime and customer support. The starter kit prices will range from $1,555 to $6,900, depending on package selection and airtime. Beginning immediately, these total solution kits are available direct from ARDIS and through authorized ARDIS agents.

About River Run

River Run Software Group, based in Greenwich, Conn., is an ISO 9001 certified corporation. It has been developing and marketing mobile computing and network management software products since 1989.

About ARDIS

ARDIS operates the first and largest nationwide wireless data network enabling in- building and on-street data communications between mobile workers, using notebook computers and personal digital assistants, and host computers. The ARDIS network serves the top 410 metro areas in all 50 states, Puerto Rico and the U.S. Virgin Islands, and covers more than 80 percent of the population and 90 percent of the business activity in the United States. The service enables executives and mobile workers to access their corporate information systems or to communicate instantaneously with their peers from virtually any location. -0-

Note to editors:

Access ARDIS press releases and company materials via the ARDIS home page on the World Wide Web. Address: http://www.ardis.com

ARDIS is a registered servicemark of ARDIS Company. All other products mentioned in this release are trademarks of their respective holders.

Motorola, Envoy and Marco are registered trademarks of Motorola, Inc.

Mail on the Run! and River Run Software Group are registered trademarks of River Run Software Group, Inc.

CONTACT: Naomi Yeransian

ARDIS

847-913-4233

[e-mail]

or

Albie Jarvis/Jon Bornstein

Copithorne & Bellows

617-252-0606

[e-mail]