ATLANTA, GA – (February XX, 2008) – Internap Network Services Corporation (NASDAQ: INAP), a global provider of end-to-end Internet business solutions, announced today that Teliax has selected and deployed Internap’s Flow Control Platform™ (FCP) to optimize the performance of its Voice over IP (VoIP) network services. A leading global provider of VoIP solutions for both homes and businesses, Teliax will improve network reliability and decrease latency with Internap’s intelligent route-optimization technology, resulting in improved quality-of-service and an exceptional customer experience.

The Yankee Group estimates that the business VoIP market will grow at a compounded annual rate of 31.4 percent, reaching nearly $3.3 billion in 20101. This growth will be driven in part, by increasing broadband Internet access and the availability of low-cost, high-quality VoIP services like Teliax.

Teliax has deployed five 10Gbps FCP appliances in Atlanta, Chicago, Denver, Los Angeles and New York, allowing them to granularly monitor network traffic and improve network performance while reducing costs. Each FCP automates and accelerates the engineering work typically required to optimize network performance in light of continually changing traffic conditions. Using the FCP, Teliax is able to streamline network operations without requiring additional engineering resources.

The Internap FCP provides network performance management and monitoring across multiple Internet connections. Without an FCP, Border Gateway Protocol (BGP) is often the default routing mechanism. BGP routes data over statically defined connections, which frequently results in poor performance. The FCP’s approach, which demonstrates Internap’s leadership as an IP industry pioneer, proactively monitors network connections, analyzes performance and dynamically routes traffic for maximum performance and cost-effectiveness. The Internap FCP can improve performance at an average of 20-50 percent, thereby increasing end-user satisfaction.

“Teliax is enjoying significant, organic growth due to our superior customer service and sound quality,” said David Aldworth, president and chief executive officer of Teliax. “Internap’s FCP provides real-time monitoring, network intelligence and optimized routing across multiple Internet backbones. This significantly reduces network latency and enables Teliax to deliver a high-quality business and home VoIP telephone service at a competitive price.”

Denver, CO-based Teliax serves a heterogeneous mix of business and home customers providing their telephone service over broadband connections from telecommunications and cable companies. The company relies on a multi-homed Internet architecture to deliver millions of minutes per day of uninterrupted service. Internap’s FCP empowers Teliax with visibility into network performance and control over network routing, enabling Teliax to promise reliability and guaranteed performance to its user base, regardless of where they are located. Teliax’s clients include small- and medium-size businesses, some of which have call centers or multiple locations worldwide.

“Internap is a recognized leader in optimizing the performance and reliability of the global Internet,” said Tim Sullivan, chief technology officer at Internap. “Teliax’s innovative VoIP telephone solution is a great example of how Internap’s FCP can improve the quality and lower the cost of network-based services.”

About Teliax
Teliax, Inc. is a global leader in Voice over IP network service. Built from the network up, Teliax is managed by a team of technologists that embrace the benefits of free open source solutions. Teliax is a privately held company located at the base of the Rocky Mountains in Denver, Colorado. Our network is a fully redundant, multi homed and distributed network that offers multiple POPS throughout the United States. Teliax offers flexible plans and a scalable solution for both residential and business needs. For more information, visit www.teliax.com

About Internap
Internap is a leading Internet solutions company that provides The Ultimate Online Experience^™ by managing, delivering and distributing applications and content with unsurpassed performance and reliability. With a global platform of data centers, managed Internet services, a content delivery network (CDN) and content monetization services, Internap frees its customers to innovate their business and create new revenue opportunities. More than 3,000 companies across the globe trust Internap to help them achieve their Internet business goals. For more information, visit www.internap.com.

Internap “Safe Harbor” Statement
Certain information included in this press release constitutes forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. All statements, other than statements of historical facts, including, among others, statements regarding the performance of our products, business strategy, projected levels of growth, and projected costs, are forward-looking statements. Those statements include statements regarding the intent, belief or current expectations of Internap and members of our management team, as well as the assumptions on which such statements are based. Forward-looking statements are not guarantees of future performance and involve risks and uncertainties that actual results may differ materially from those contemplated by forward-looking statements. Other important factors that may affect Internap's business, products, results of operations and financial condition include, but are not limited to: our ability to sustain profitability; our ability to respond successfully to technological change; the availability of services from Internet network service providers or network service providers providing network access loops and local loops on favorable terms, or at all; failure of third party suppliers to deliver their products and services on favorable terms, or at all; failures in our network operations centers, network access points or computer systems; the ability to successfully integrate the operations of Internap and VitalStream Holdings, Inc.; and our ability to protect our intellectual property.

Our Annual Report on Form 10-K/A, subsequent Quarterly Reports on Form 10-Q, recent Current Reports on Form 8-K and other Securities and Exchange Commission filings discuss the foregoing risks, as well as other important risk factors that could contribute to such differences or otherwise affect our business, results of operations and financial condition. We undertake no obligation to revise or update any forward-looking statement for any reason.