SEATTLE, November 3, 2008 - F5 Networks, Inc. (NASDAQ: FFIV), the global leader in Application Delivery Networking, today announced that the F5^® VIPRION^® solution has won Internet Telephony's 2008 Excellence Award. The awards recognize the leaders in Internet Protocol (IP) communications, and are presented each year by Internet Telephony magazine.

"We are proud to present F5 with a 2008 Internet Telephony Excellence Award. The VIPRION Application Delivery Controller has proven its outstanding contribution to IP communications and delivered winning solutions for its customers," said Rich Tehrani, Editor-in-Chief of Internet Telephony.

VIPRION is the industry's first Application Delivery Controller (ADC) that scales seamlessly with an organization's business needs without sacrificing manageability or simplicity. VIPRION features top-end ADC performance four times greater than that of any competitive product. And unlike other ADC platforms, performance blades can be transparently added on-demand-without any disruption-as network environments and applications require increased processing power.

"Taking risks to advance VoIP technology and provide real solutions has earned F5 recognition from the editors of Internet Telephony. VIPRION has excelled in delivering applications and its customers are extremely pleased with the results," added Greg Galitzine, Editorial Director of Internet Telephony.

"Since the product's introduction in early 2008, we've seen tremendous interest from the telecommunications industry based on VIPRION's unparalleled availability and scalability. VIPRION enables consolidation and IT agility by delivering the most versatile Application Delivery Controller on the market today," said Jason Needham, Sr. Director of Product Management at F5. "Our customers benefit by leveraging VIPRION as a single point to manage their complex, high-volume multimedia application delivery environments. Awards like this confirm that VIPRION scales as needed to meet the demanding, evolving needs of the VoIP/IP communications market."

Each year, the Internet Telephony Excellence Awards honor products and services that excel in the VoIP/IP communications industry and the companies whose customers offer testaments of support. The 2008 Internet Telephony Excellence Award winners have been published in the October 2008 issue of Internet Telephony magazine.

For more information on VIPRION, please visit: www.f5.com/products/hardware/viprion.html

About Internet Telephony Magazine

Internet Telephony has been the VoIP Authority since 1998^™. Since the first issue in February of 1998, Internet Telephony magazine has been providing unbiased views of the complicated converged communications space. Internet Telephony offers rich content from solutions-focused editorial content to reviews on products and services from TMC Labs. Internet Telephony magazine has a circulation of 225,000 including passalong readers.

For more information, please visit www.itmag.com.

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