Bytemobile and F5 Scale T-Mobile 3G Network Capacity To Address Explosive Growth in Data Traffic.

Bytemobile and F5 Establish Worldwide Partnership Focused on Increasing Efficiency of Network Operations to Maximize Capacity and Agility of Mobile Network Operators

MOUNTAIN VIEW, Calif. & SEATTLE -- Bytemobile, Inc., the global leader in mobile internet solutions for wireless network operators, and F5 Networks, Inc. (NASDAQ:FFIV), the global leader in Application Delivery Networking, today announced that Bytemobile has enhanced its existing deployment at T-Mobile International with an F5 solution that provides scalable network capacity to serve the mobile content delivery needs of T-Mobile customers. In addition, Bytemobile and F5 have formed a partnership focused on delivering scalable and secure mobile internet solutions to wireless network operators worldwide.

For T-Mobile International, which serves approximately 95 million subscribers across its European operating companies, Bytemobile has integrated the F5 VIPRION([R]) on-demand Application Delivery Controller with its Unison[TM] Mobile Internet Platform installed in the core data path of the network. The result is increased network scalability, availability and performance for the delivery of value-added mobile data services to T-Mobile customers.

T-Mobile International indicated that it has experienced significant growth in data adoption and usage for both mobile broadband and mobile internet applications. As a result, the volume and mix of its network traffic has changed dramatically over the last year. Bytemobile's internet gateway, traffic control and optimization solutions, now combined with F5's Application Delivery Networking capabilities, have enabled T-Mobile to scale the capacity of its 3G network in line with consumer demand.

Under the terms of its global systems integration and reseller agreement with F5, Bytemobile integrates F5[R] BIG-IP([R]) and VIPRION solutions with other third-party system components - such as industry-standard server platforms, operating systems, switches, and application software - around the Unison software platform in its customers' networks. Bytemobile selected F5 for its specialized ability to deliver high availability and high throughput for complex applications in very large-scale networks with traffic flowing through multiple data centers.

The F5 VIPRION system is architected to deliver the intelligence and performance needed to scale next-generation networks and applications, enabling wireless network operators to effectively handle explosive growth in data traffic. This complements Bytemobile's data reduction and service control capabilities, which enable operators to manage the impact of not only traffic growth but also changing traffic mix on existing network infrastructure, while maintaining high quality of service to subscribers.

Economic Imperatives

"The Apple iPhone, USB dongles, mobile video, and other factors have caused data traffic on tier-one networks to grow at rates of 10% to 15% per month," said Adrian Hall, chief marketing officer of Bytemobile. "In some cases, 1% to 2% of users are consuming up to 50% of a network's traffic. Now more than ever, operators need to protect and extend their network assets, especially given the current global economic environment. They also need to minimize churn by delivering rich, personalized data services that build brand loyalty with their customers."

"Our partnership with Bytemobile helps us assure mobile network operators that their networks will not only support their current business objectives, but will also rapidly respond to new revenue opportunities," said Dan Matte, senior vice president of marketing and business development at F5. "Now operators can benefit from the scalability, availability and IT agility that F5 has traditionally delivered to large enterprises and telecommunications networking companies. We look forward to working with Bytemobile to help operators worldwide increase their competitive edge and enrich their data services for customers."

T-Mobile has been a Bytemobile customer since 2002. Under a group supply agreement, T-Mobile International selected Bytemobile's Unison Mobile Internet Platform as the consolidation node for its Mobile Internet Gateway (MIG). Bytemobile solutions on the Unison platform are deployed at T-Mobile operating companies in Austria, the Czech Republic, Germany, the Netherlands, and the United Kingdom. Bytemobile has selected the F5 VIPRION system to meet the scalability and availability requirements of the Unison platform at these T-Mobile sites.

For additional information on F5's partnership with Bytemobile, please visit: www.f5.com/solutions/technology-alliances/telecom/bytemobile.html.

About Bytemobile, Inc.

Bytemobile is a tier-one provider of integrated mobile internet solutions which enable wireless network operators to deliver value-added data services to consumers on mass-market cellular phones, feature phones, smartphones, and laptops. Bytemobile[R] solutions are installed in the networks of 100 operators in 54 countries and 12 of the world's top 15 tier-one operators. Customers include AT&T, China Mobile, China Unicom, KDDI, KPN, Orange, Orascom, Sprint Nextel, T-Mobile, Telecom Italia Mobile, Telefonica O2, TeliaSonera, Vodafone, and WILLCOM. Bytemobile is a privately held company with regional sales and support offices in Wokingham, U.K.; Dubai, U.A.E.; Tokyo, Japan; Beijing, China; Singapore; and Sydney, Australia; and research and development centers in Mountain View, California; Patras, Greece; Champaign, Illinois; and Belfast, Northern Ireland. To learn more about Bytemobile, visit the company's website at www.bytemobile.com.

Bytemobile, the Bytemobile logo and Unison are trademarks of Bytemobile, Inc. and may be registered in some jurisdictions. All other product or service names are the property of their respective owners.

About F5 Networks

F5 Networks is the global leader in Application Delivery Networking. F5 provides solutions that make applications secure, fast and available for everyone. By adding intelligence and manageability to the network to offload applications and optimize the data storage layer, F5 extends the power of intelligent networking to all levels of application delivery. F5's extensible architecture optimizes applications, delivers application reliability, and protects the application and network. Enterprise organizations, service providers and Web 2.0 content providers worldwide trust F5 to keep their applications running. The company is headquartered in Seattle, Washington with offices worldwide. For more information, go to www.f5.com.

F5, F5 Networks, BIG-IP, and VIPRION are trademarks or service marks of F5 Networks, Inc., in the U.S. and other countries. All other product and company names herein may be trademarks of their respective owners.

This press release may contain forward looking statements relating to future events or future financial performance that involve risks and uncertainties. Such statements can be identified by terminology such as "may," "will," "should," "expects," "plans," "anticipates," "believes," "estimates," "predicts," "potential," or "continue," or the negative of such terms or comparable terms. These statements are only predictions and actual results could differ materially from those anticipated in these statements based upon a number of factors including those identified in the company's filings with the SEC.