Acme Packet Session Border Controllers Secure Alcatel-Lucent Communications Solutions for Enterprises

Acme Packet® (NASDAQ: APKT), the leader in session delivery networks, today announced that its Net-Net Session Director (SD) session border controller (SBC) is fully interoperable with Alcatel-Lucent SIP solutions providing large enterprises with an end-to-end, Session Initiation Protocol (SIP)-based solution that ensures security, interoperability, and reliability for real-time, multimedia communications across IP network borders. This interoperability qualification, part of the Alcatel-Lucent Application Partner Program, also enables the companies to co-sell and co-market the combined solutions. The announcement was made at the Alcatel-Lucent Dynamic Tour 2011 in Barcelona.

"Integrating Acme Packet enterprise SBCs with Alcatel-Lucent SIP-based communication and collaboration platforms offers enterprises a comprehensive, secure and fully interoperable unified communications environment,” said Nicols De Kouchkovsky, CMO of Alcatel-Lucent Enterprise. "This solution also enables enterprises to leverage Alcatel-Lucent’s leadership in IP Communication Server environments.”

The initial solution features Acme Packet Net-Net 3820 and 4500 E-SBCs deployed at SIP trunking and Internet borders. Users in remote locations access Alcatel-Lucent SIP solutions over IP managed WAN or Internet connections. Remote employees utilize encryption technology embedded within Alcatel-Lucent My Instant Communicator SIP dekstop client. All signaling and media traffic is encrypted over the IP transport then terminated at Acme Packet E-SBCs. The E-SBCs also securely integrate remote employees and anonymous users into Alcatel- Lucent OmniTouch™ 8660 My Teamwork Conferencing and Collaboration solution.

"Our collaboration with Alcatel-Lucent provides enterprises with a secure and flexible SIP-based solution that simplifies the integration of voice, video and unified communications,” said Mark Vella, vice president of business development for Acme Packet. "Our Net-Net SBCs deliver industry-leading capabilities that complement Alcatel-Lucent’s wide range of SIP-based products, and provide a complete solution for its world-wide sales and service organizations.”

About Acme Packet

Acme Packet (NASDAQ: APKT), the leader in session delivery network solutions, enables the trusted, first-class delivery of next-generation voice, data and unified communications services and applications across IP networks. Our Net-Net product family fulfills demanding security, service assurance and regulatory requirements in service provider, enterprise and contact center networks. Based in Bedford, Massachusetts, Acme Packet designs and manufactures its products in the USA, selling them through over 140 reseller partners worldwide. More than 1,300 customers in 105 countries have deployed over 12,000 Acme Packet systems, including 90 of the top 100 service providers and 30 of the Fortune 100. For more information visit www.acmepacket.com.

Acme Packet Safe Harbor Statement

Statements contained herein that are not historical fact may be forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. Such forward-looking statements may relate, among other things, to our position in the session border control market, our expected financial and operating results, our ability to establish and maintain intellectual property rights, our ability to build and grow Acme Packet, the benefits and advantages of our products, including any enhancements or new features, services and programs, and our ability to achieve our goals, plans and objectives. Such forward-looking statements do not constitute guarantees of future performance and are subject to a variety of risks and uncertainties that could cause our actual results to differ materially from those anticipated. These include, but are not limited to: difficulties in growing our customer base, difficulties leveraging market opportunities, difficulties providing solutions that meet the needs of customers, poor product sales, long sales cycles, difficulty developing new products, difficulty in relationships with vendors and partners, higher risk in international operations, difficulty managing rapid growth, and increased competition. Additional factors that could cause actual results to differ materially form those projected or suggested in any forward-looking statements are contained in our recent filings with the Securities and Exchange Commission, including those factors discussed under the caption "Risk Factors” in such filings.