Telenor Denmark Chooses Starent Networks Multimedia Core Solution for 2G, 3G/UMTS and 4G/LTE

Starent Networks, Corp. (Nasdaq: STAR), a leading provider of infrastructure solutions that enable mobile operators to deliver broadband multimedia services, announced today that Telenor Denmark has selected Starent’s multimedia core network equipment for the carrier’s 2G, 3G/UMTS and 4G/LTE networks. This comes on the heels of Telenor Norway’s selection of Starent to replace the core network elements of its mobile services infrastructure.

“This is a significant network upgrade. We are improving capacity, stability and speed and will be able to offer consumers better mobile broadband services. The agreement will build a network that is ready to meet future consumer demands,” says Henrik Clausen, chief executive officer for Telenor in Denmark.

“Telenor Group is a pioneer in mobile communications and committed to providing an exceptional customer experience,” said Ashraf Dahod, president and chief executive officer of Starent Networks. “We are honored to have been selected by them for this region and look forward to building out a high-performance, highly intelligent network that can meet the ever increasing demand of their subscribers.”

Starent Networks will be providing Telenor Denmark with the Serving GPRS Support Node (SGSN) and Gateway GPRS Support Node (GGSN) for the 2G and 3G/UMTS networks and Mobility Management Entity (MME), Serving Gateway (SGW) and Packet Data Network Gateway (PGW) for the 4G/LTE network on the ST series platform. Additionally, Telenor plans to use Starent’s Network-Based Traffic Optimization In-Line Service.

About the Telenor Group

The Telenor Group is an international provider of high quality tele, data and media communication services with mobile operations in 13 markets across the Nordic region, Central and Eastern Europe and in Asia. Headquartered in Norway, the Telenor Group is among the largest mobile operators in the world with over 160 million mobile subscriptions, revenues in 2008 of NOK 110 billion, and a workforce of more than 40,000 (all numbers include Kyivstar).

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For more information about the Telenor Group, please visit www.telenorgroup.com.

About Starent Networks

Starent Networks, Corp. is a leading provider of infrastructure solutions that enable mobile operators to deliver multimedia services to their subscribers. Starent Networks has created solutions that provide mobile operators with the functions and services needed for access, mobility management and call control in their networks. Through integrated intelligence and high performance capabilities, Starent Networks’ solutions also enhance subscriber management, billing and session policy enforcement. The company’s products are capable of supporting a wide range of mobile wireless networks, such as CDMA2000, UMTS/HSPA, LTE, WiFi, and WiMAX. Starent Networks’ products have been deployed by over 100 mobile operators in 45 countries. Additional information about Starent Networks is available at www.starentnetworks.com.

Starent Networks’ Safe Harbor Statement

Any statements in this press release about future expectations, plans and prospects for Starent Networks, including statements about expectations related to the company's multimedia core platform solutions and in-line services, constitute forward-looking statements within the meaning of The Private Securities Litigation Reform Act of 1995. These statements contain the words "believes," "anticipates," "plans," "expects," "will" and similar expressions. Actual results may differ materially from those indicated by such forward-looking statements as a result of various important factors, including the inability to predict the future success or market acceptance of Starent Networks’ multimedia core platform solutions, the highly competitive and rapidly evolving market in which Starent Networks’ competes, Starent Networks’ limited operating history, the fluctuation of its past operating results, its reliance on a limited number of customers for a significant portion of its revenues and its reliance on a single line of products and other factors discussed in the "Risk Factors" section of Starent Networks’ Annual Report on Form 10-K for the year ended December 31, 2008, and other documents we periodically file with the Securities and Exchange Commission. In addition, the forward-looking statements included in this press release represent Starent Networks’ views as of the date of this press release. Starent Networks anticipates that subsequent events and developments will cause its views to change. However, while Starent Networks may elect to update these forward-looking statements at some point in the future, it specifically disclaims any obligation to do so. These forward-looking statements should not be relied upon as representing Starent Networks’ views as of any date subsequent to the date of this press release.

Starent® and the Starent Networks logo are either registered trademarks or trademarks of Starent Networks, Corp. in the United States and/or other countries. The names of other companies and products mentioned in this release may be the trademarks of their respective owners.