Carrier-Grade Wireless Data Communications Application Offers Wireless
            Carriers a Proven Path to Wireless Data Revenue Today

    SEATTLE, Sept. 10 /PRNewswire/ -- ViAir, Inc., a mobile applications
management and services delivery platform provider for wireless carriers,
today announced the availability of WirelessInbox(TM) 3.0, the newest version
of ViAir's carrier-grade messaging application.  WirelessInbox provides
carriers with the ability to give subscribers immediate access to their
corporate and Internet email, calendars and contacts, using any Web-enabled
device on any network without the need for an on-site server.  This new
version of WirelessInbox also offers corporate end-users even more convenient
ways to sign up and access their most critical information behind the
corporate firewall.
    In related news today, ViAir also announced Wireless Application Manager,
the first fully integrated carrier-grade infrastructure that allows carriers
and their enterprise customers to efficiently deliver, manage and administer
differentiated wireless Web content and applications.
    ViAir's WirelessInbox has achieved strong support and is deployed by
leading carriers, including Nextel Communications, Rogers AT&T, and TELUS
Mobility.  Available to more than 20 million wireless subscribers,
WirelessInbox is driving adoption and daily use of the wireless Web.  The
average WirelessInbox user drives a significant increase in wireless data
usage.
    "Carriers need compelling applications that drive daily use of the
wireless Web and generate immediate wireless data revenue," said
Bruce Chatterley, CEO, ViAir.  "WirelessInbox is the only email application,
deployed by major carriers, that offers a proven path to wireless data
revenue.  Using WirelessInbox, carriers can give their subscribers instant
mobile access to their most critical information using one device.  Because
there is no need to deploy a server behind the firewall, carriers can
immediately market this service to enterprise end-users."
    WirelessInbox 3.0 combines ViAir's previous WirelessInbox consumer and
enterprise editions into a rich, comprehensive single offering.  WirelessInbox
3.0 enables carriers to provide their end-users with secure access to
corporate email, connecting to Microsoft Outlook or Lotus Notes, calendar and
contacts, and up to 10 existing Internet email accounts through a single login
on their mobile phone.  Highlights of WirelessInbox's new features and
benefits include:

    -- New enterprise deployment features.  WirelessInbox now allows carriers
to support end-user deployment within enterprises that have locked down
desktops or authenticating proxy servers.
    -- Enhanced desktop assistant.  Now laptop users disconnected from their
corporate network can continue to access their most up-to-date business
information by securely delegating PIM synchronization to a colleague.
    -- Flexible Web user interface.  The new Web user interface, "Anywhere
UI," now adds the ability for mobile users to read and compose e-mail, view
calendars and edit contacts, providing fast access to corporate information
from any PC connected to the Internet.  The Web interface is optimized for
today's wireless networks, making it the ideal feature to be packaged with
wireless modems and 2.5G or 3G wireless data services.
    -- Service Class provisioning.  Carriers can now provide tiered levels of
services, controlling which WirelessInbox features subscribers can access.
    -- Measure ROI.  WirelessInbox's Decision Support System allows carriers
to generate automated reports to get a clear picture of subscriber uptake and
application usage.

    Unlike any other messaging application available, WirelessInbox 3.0 is
designed to be completely private labeled and branded by the carrier, giving
carriers complete control over the end-user presentation.   WirelessInbox
easily integrates with the carrier network, including their billing and
provisioning systems, to deliver a seamless end-user experience.

    Pricing and Availability
    ViAir's WirelessInbox 3.0 is available immediately to wireless carriers
worldwide.  WirelessInbox is a licensed product that includes an upfront
license and per subscriber fee.  ViAir will demonstrate WirelessInbox 3.0 and
Wireless Application Manager September 12 and 13 at PCIA GlobalXChange 2001 at
the Los Angeles Convention Center, booth #1306.

    About ViAir, Inc.
    ViAir, Inc. is a mobile applications management and services delivery
platform provider for wireless carriers.  The company's carrier-grade
applications and infrastructure are revolutionizing the way carriers deliver
applications and information to their subscribers.  ViAir's proven technology
deployed by major carriers such as Nextel Communications, Inc., Rogers AT&T
Wireless and TELUS Mobility, is driving adoption and daily usage of the
wireless Web today.  ViAir is based in Seattle with European headquarters near
London.  The privately held company was founded in February of 2000.  For more
information on ViAir, go to http://www.viair.com, email info@viair.com, or call
1-866-44-VIAIR or 206-428-4100.
     NOTE:  ViAir, WirelessInbox and Wireless Application Manager are
trademarks of ViAir Inc., all rights reserved. All other trademarks are the
property of their respective owners.

    CONTACT:  Joanne Petitto of DDB Worldwide Communications,
+1-206-223-6423, or joanne.petitto@sea.ddb.com, for ViAir, Inc.; or
Rebecca Gelinas of ViAir, Inc., +1-206-428-4276, or rebeccag@viair.com.

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