Acme Packet Features Wireless Access, Core Session Routing and Interconnect Solutions at CTIA Wireless 2009

Acme Packet® (NASDAQ: APKT), the leader in session border control solutions, today announced that it will showcase its wireless access, core session routing and network interconnect solutions at CTIA Wireless 2009® at the Las Vegas Convention Center from April 1 – 3, 2009. Acme Packet will be exhibiting in booth 5741 as well as participating in the CTIA Wireless conference speaking program.

At CTIA, senior staff will be available to discuss how Acme Packet’s solutions can smartly simplify the delivery of IP voice, video and data services over 3G and 4G WiMAX and LTE RANs, fixed-mobile convergence networks, VoIP interconnects and core transport networks. Acme Packet will also highlight the key role its Net-Net® product family plays in the GSM Association’s (GSMA) IPX, PathFinder Service and Rich Communication Suite (RCS) initiatives. To schedule a meeting with Acme Packet or view the demonstrations at CTIA Wireless complete the meeting request form on the Acme Packet website.

Acme Packet’s latest product demonstrations featuring femtocells, streaming video control and its Open Session Routing (OSR) architecture will be featured at the Acme Packet booth. The demonstrations will showcase Acme Packet’s session border controller, session routing proxy and multiservice security gateway working with products and services from AirWalk Communications, NetNumber, NeuStar, Tatara Systems, Ubiquisys and VeriSign Communications Services. The demonstrations include:

Voice and data service delivery using SIP femtocells (CDMA and UMTS)

Acme Packet’s Net-Net Security Gateway (SG) and Net-Net Session Director (SD) will connect SIP-based femtocells to an IMS/NGN data center. The femtocells, a CDMA AirWalk EdgePoint™ and an UMTS Ubiquisys ZoneGate, convert legacy signaling and media to SIP and RTP for transport over broadband Internet access connections. The Net-Net SG provides the femtocell security gateway function for securely tunneling voice and data traffic across the Internet using IPsec tunnels. Acme Packet’s Net-Net SD session border controller provides SIP session control, including denial-of-service protection, admission control, protocol normalization and other cost and quality controls. For the AirWalk CDMA demonstration, Acme Packet’s SBC also routes traffic to Tatara Systems’ Tatara Convergence Server (TCS) which provides voice, messaging and supplementary services as well as active session handover to the macro TDM-based cellular network. Tatara Systems will also be demonstrating the SIP femtocell solution in its booth 8951.

Video delivery with quality of service

Acme Packet’s Net-Net SD will control the delivery of Real-Time Streaming Protocol (RTSP)-based video over a bandwidth-constrained access network. The SBC acts as a RTSP-proxy, controlling video stream admission into the access network by querying an external policy server and assigns appropriate QoS marking for the stream’s packets. The SBC also provides access controls and topology hiding to ensure network availability and security of the video servers.

Core session routing with Caller ID delivery

Demonstrating Acme Packet’s OSR architecture, Acme Packet’s Net-Net Session Router (SR), NetNumber’s TITAN addressing and routing platform, and VeriSign’s Network Routing Directory (NRD) service, provide session routing and Calling NAMe (CNAM) for SIP-based wireline and mobile phones. The Net-Net SR sends an ENUM query to the TITAN database, which is updated via the VeriSign Registry, to add the name of the calling party to the SIP INVITE message.

Core session routing using GSMA Pathfinder

In a second OSR demonstration, Acme Packet’s Net-Net SR will route VoIP calls between handsets using information provided by the GSMA’s PathFinder Service, a number resolution service managed by NeuStar. Based on Carrier ENUM, the GSMA PathFinder Service’s centralized routing database provides the Net-Net SR with dynamic route selection for the SIP sessions.

Acme Packet will also participate in the CTIA Wireless 2009 conference speaking program with two educational sessions in South Hall, Level 2:

BBWF Unwired 2009: "IMS: Right or Wrong”

Speaker: Seamus Hourihan, Vice President Marketing and Product Management

Wednesday, April 1, 2:30 pm-3:45 pm

Room S230

The Blueprint of Convergence: "VoIP-Delivering Voice or...Much More?”

Thursday, April 2, 4:00 pm-5:15 pm

Speaker: Albert Lew, Senior Product Manager

Room S222

About Acme Packet

Acme Packet, Inc. (NASDAQ: APKT), the leader in session border control solutions, enables the delivery of trusted, first-class interactive communications—voice, video and multimedia sessions—and data services across IP network borders. Our Net-Net family of session border controllers, multiservice security gateways and session routing proxies supports multiple applications in service provider, large enterprise and contact center networks--from VoIP trunking to hosted enterprise and residential services to fixed-mobile convergence. They satisfy critical security, service assurance and regulatory requirements in wireline, cable and wireless networks; and support multiple protocols—SIP, H.323, MGCP/NCS and H.248—and multiple border points—interconnect, access and data center. Our products have been selected by more than 635 customers in 92 countries, including 29 of the top 30, and 89 of the top 100 service providers in the world. For more information, contact us at +1 781.328.4400, or 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 build and grow Acme Packet, the benefits and expected deployments of our products or services, 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.