Visto Provides Corporate Messaging for AT&T Wireless Subscribers

(REDWOOD SHORES, Calif., November 25, 2003 ) –Visto Corporation (www.visto.com), the leading provider of personal and corporate mobile access solutions that are easy to install, administer and use, announced today that it has entered into joint sales and marketing efforts to provide corporate wireless email solutions to AT&T Wireless’ business subscribers using the new Treo 600 on AT&T Wireless’ Next Generation Network. Under the agreement, Visto has begun to offer its corporate wireless messaging solution, Visto Mobile Access Solution, Server Edition, to business subscribers of AT&T Wireless through joint selling opportunities with the AT&T Wireless sales force throughout the United States. Visto supports a variety of corporate messaging devices including the Treo 600 which became available through AT&T Wireless today.

Visto Mobile Access Solution, Server Edition, provides wireless access to corporate email from Microsoft Exchange Server on wireless converged devices. Email sent to the corporate email account is “pushed” to the device through the AT&T Wireless network so mobile workers are able to stay productive while away from their desk. Email can be viewed, created, responded to, forwarded and deleted on the device, and is synchronized to Exchange/Outlook over the wireless network. Visto Mobile Access Solution, Server Edition email solution is deployed easily by corporate IT, generally in 20 minutes, without modifications to the corporate firewall. AT&T Wireless bills for the Visto services and their wireless data plan on a single invoice. AT&T Wireless has also been providing Mobile Office, a Visto-powered wireless email solution for individual mMode™ subscribers since last year.

Visto’s announcement coincides with AT&T Wireless’s launch of the popular Treo 600 smartphone. Visto announced support for the Treo 600 in July, and Visto continues to offer support for the Treo 600 on the AT&T Wireless network. Visto also supports a number of other devices, several on AT&T Wireless’ network, including Palm OS devices (including PalmOne Tungsten W), Windows Mobile devices (Pocket PC and Smart Phone) including Siemens SX56, and Symbian and J2ME-based wireless devices.

“AT&T Wireless is an excellent partner for reaching corporate America with Visto solutions,” said Brian Bogosian, chairman, president and CEO of Visto. “They understand the value of a total corporate package: a choice of a number of capable wireless devices, aggressive data plan pricing with fast networks, and Visto’s market leading wireless messaging solution for corporate email.”

About Visto
Established in 1996, Visto is the leading provider of wireless messaging solutions to mobile operators for personal and corporate use. Visto’s technology provides secure access to the most widely used corporate applications over any network and on a broad array of devices, and supports both browser-based as well as offline-capable devices. Visto Mobile Access Solution, Server Edition, provides departmental and enterprise access to corporate email. Visto MessageXpress provides individual access to corporate, Internet and POP3 email. Both Server Edition and MessageXpress are well suited to the “converged” wireless PDAs/phones using Palm OS, Pocket PC, SmartPhone, J2ME and Symbian platforms. Visto’s WirelessInbox, provides real time access to corporate and personal email via direct access through desktop computers via any wireless device’s browser and is well suited to wireless phones with only WAP browser capability. Leveraging a portfolio of eight granted patents in synchronization, access and security technologies, and Visto’s platform is a proven, scalable solution that has supported more than 2.7 million users. Visto’s solutions are available through wireless operators worldwide, including AT&T Wireless, Bell Mobility, KPN, Manitoba Telecom Services, Nextel Communications, Inc., Rogers AT&T Wireless, SaskTel Mobility, SmarTone and TELUS Mobility. For more information, visit www.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.