Starent Networks Supercharges Market Leading Performance of its Mobile Broadband Core Platform

TEWKSBURY, Mass.--(Business Wire)--
Starent Networks, Corp. (Nasdaq:STAR), a leading provider of multimedia core
solutions for mobile broadband, today announced enhancements that supercharge
performance of its ST40 platform. These enhancements give operators additional
flexibility in architecting their packet core and multimedia core networks and
further extend Starent`s industry-leading capabilities by increasing performance
up to 4X.

The performance of mobile broadband 3G and 4G networks requires increased
capacity, significant throughput and high transaction rates to manage a growing
data subscriber base, ultra high speed traffic, high demand smart phones and new
data services.

Mobile operators will be able to deploy Starent`s newest processing card, the
Packet Services Card 2 (PSC2) and 10 Gigabit Ethernet (10GE) card to increase
capacity, throughput and transaction rates in higher traffic areas, while
continuing to use Starent`s existing cards for other network areas. This
combination provides operators with flexibility by offering multiple performance
options based on their specific needs. In addition, the new cards increase
performance of Starent`s deep packet inspection and intelligent In-line
Services.

"Mobile data usage continues to increase, and as subscribers reach for their
smartphones, operators are preparing their networks to accommodate further
growth," said Peter Jarich, research director with Current Analysis. "Added
session, throughput and service scalability helps put Starent ahead of this
curve while giving operators the flexibility required to address low-capacity
through high-capacity traffic points."

"Starent strives to provide industry-leading performance for our mobile operator
customers. With the newest additions to our offering, we further enhance the
capabilities of mobile broadband core networks and ultimately the subscriber
experience," said Ashraf Dahod, president and CEO of Starent Networks.

Dahod added, "We are consistently challenging ourselves to increase performance
and innovation to stay ahead of market demand. As a result, we will continue to
add to our portfolio of platforms to increase performance and provide mobile
operators further flexibility in how they architect their network."

The new PSC2 and 10GE cards can also be used in existing ST40 deployments, to
increase performance without a forklift upgrade. Starent`s PSC2 and 10GE cards
are expected to be commercially available in July 2009.

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 UMTS/HSPA,
CDMA2000, WiFi, and WiMAX. Over 95 mobile operators in more than 40 countries
have deployed Starent Networks` products. 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.

Starent Networks, Corp.
Jennifer Buchhalter, +1-978-863-3749
jbuchhalter@starentnetworks.com
or
Bock Communications, Inc.
Amy Farrell, +1-617-412-5175
starent@bockpr.com

Copyright Business Wire 2009