Vodafone UK Selects Visto to Drive Mobile Email Choice

Visto Mobile™ with ConstantSync™ Technology to Power Vodafone UK’s Business Email solution

(Redwood Shores, CALIF., 25 November 2005) – Visto Corporation, a leading global provider of secure push mobile email, today announced that Vodafone UK, the UK’s leading mobile phone operator, has selected Visto Mobile™ with ConstantSync™ technology to power its Vodafone Business Email offering, launched this week.

With Visto Mobile, Vodafone UK is able to deliver a mobile push email service to satisfy the needs of business customers, regardless of the size of their business, their email infrastructure, or their preferred mobile phone. In a service that is both easy to use and administrate, Visto Mobile enables mobile professionals to securely send and receive email, calendar updates and changes to contacts in real time.

“Vodafone Business Email enables us to offer mobile email support to companies of all sizes on a multitude of differing devices and popular platforms”, said Mark Bond, Director of Enterprise Marketing for Vodafone UK. “Working with Visto, Vodafone has developed a product to meet the both the complex requirements of larger companies as well as the need of smaller organisations and individuals to add easy to manage email to their phone of choice.”

“Vodafone UK's selection of Visto Mobile reaffirms Vodafone's strong commitment to high customer satisfaction and service excellence,” said Brian Bogosian, chairman, president and CEO of Visto Corporation. “Because of a lack of device choice and the high costs of entry, mobile email use has been restricted to an executive elite. Vodafone Business Email will change this, and a wider UK business audience will soon be enjoying the productivity benefits of mobile email safely and securely on a device of their choice.”

The Visto Mobile platform is flexible enough to enable a mobile operator to deliver a consistent advanced user experience for all business customers: large enterprises running Microsoft Exchange or Lotus Domino, requiring a dedicated scalable server; smaller businesses running these mail platforms, requiring a solution to install on an individual’s PC; as well as small businesses wishing to take Internet-based email mobile. In addition, the Visto platform supports the broadest set of devices across all operating systems.

With the addition of Vodafone UK’s Vodafone Business Email solution, Visto Mobile is now available from nine Vodafone operators and affiliates in Europe: Vodafone Germany, Vodafone Ireland, Vodafone Greece, Vodafone Italy, Vodafone Netherlands, Vodafone Spain, SFR (France), and Elisa (Finland).

About Visto Mobile with ConstantSync
Visto Mobile is Visto's carrier-grade platform for wireless access to corporate and personal e-mail, calendar, contacts and other corporate data. Visto Mobile utilizes ConstantSync, a real-time push technology that ensures valuable corporate data is always up to date and never stored outside the firewall. The complete platform comprises server, desktop, and device software, providing a complete mobile email/PIM solution for wireless operators to rapidly deploy as their uniquely branded solution for their subscribers. The platform provides push e-mail delivery to any mobile device over 2.5G and 3G networks, FIPS 140-compliant, end-to-end AES encryption and an optimized network architecture that requires only 20 percent of the bandwidth of SyncML or IMAP-based solutions. Visto's solutions work on the broadest set of wireless devices that include Treo600/650 with PalmOS, Microsoft Smart Phone devices, Microsoft PPC integrated communications devices, Sony-Ericsson P900/P910 with Symbian UIQ, Symbian S60, S80 devices from Nokia and Java Enabled devices.

About Visto
Visto delivers the leading global platform for mobile operators to provide wireless push e-mail to the broadest set of mobile devices. Visto’s open solution enables e-mail for the mass market, targeting large enterprises, small businesses and mobile professionals. The company’s patented Visto Mobile™ platform with ConstantSync™ technology works in real time with POP3, IMAP, Microsoft Exchange and Lotus Domino e-mail solutions for personal to enterprise use, providing maximum control and flexibility for the operator and choice for the customer. Visto’s customized, brandable solutions are available through mobile operators worldwide including Cingular, Elisa, KPN, Manitoba Telecom Services, Rogers Wireless, SaskTel Mobility, SmarTone, SFR, Sprint-Nextel, TELUS Mobility and the Vodafone Group.

Established in 1996 and headquartered in Redwood Shores, California, with offices in Seattle, London, Rome, Paris, Toronto, Tokyo, Beijing and Tianjin, China, Visto is backed by Oak Investment Partners, Draper Fisher Jurvetson, ePlanet Ventures, VantagePoint Venture Partners, Meritech Capital Partners, Rustic Canyon Ventures, Allegis Capital and Blueprint Ventures. For more information, visit www.visto.com or e-mail sales@visto.com.

©Copyright 2008.

Visto Corporation, Visto, the Visto logo, Visto Mobile, ConstantSync, Constant Synchronization and worklife.freedom are either trademarks or registered trademarks of Visto Corporation. All third-party trademarks, trade names, or service marks are the property of their respective owners and are used only to refer to the goods or services identified by those third-party marks. Visto's technology is protected by U.S. Patents 7,228,383; 7,225,231; 7,039,679; 6,085,192; 5,968,131; 6,023,708; 5,961,590; 6,131,116; 6,151,606; 6,233,341; 6,131,096, 6,708,221 and 6,766,454 and various other foreign patents. Other patents pending.

All third-party trademarks, trade names, or service marks used herein are the property of their respective owners and are used only to refer to the goods or services identified by those third-party marks.