Audiocodes Ltd. — Regulatory Filings 2006

Mar 13, 2006

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P R E S S R E L E A S E

Contacts Shirley Nakar AudioCodes Tel: +972-3-976-4000 shirley@audiocodes.com

Megan Kidd Microsoft Exchange Tel: 425-703-9684 mkidd@exchange.microsoft.com

Elizabeth Anderson Alan Weinkrantz And Company Tel: 254-741-0336 elizabeth@weinkrantz.com

AudioCodes Works with Microsoft to Offer Key PBX Interoperability Solution for Microsoft Exchange “12” Unified Messaging

Mediant™ and MediaPack™ VoIP Gateways will provide SIP connectivity to enable PBX integration and site consolidation

San Jose, Spring VON 2006 Conference & Expo, California, Lod, Israel, March 13, 2006– AudioCodes (NASDAQ: AUDC), a leading provider of Voice over Packet (VoP) technologies and Voice Network products, today announced that its Mediant™ and MediaPack™ SIP VoIP Gateways provides key interoperability solutions that enable Microsoft Exchange “12” Unified Messaging to connect to an enterprise’s existing voice network. Key capabilities to be delivered by Microsoft Exchange “12” — the code name for Microsoft’s next version of its leading server for e-mail, calendaring and unified messaging —include a unified communications experience for businesses of all sizes. Microsoft and AudioCodes have been working closely to develop and test the AudioCodes gateways to help ensure they will be market ready along with the Exchange “12”. Microsoft announced

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its “Beta 1” program for Exchange “12” late last year, and Exchange “12” is expected to be generally available in late 2006 or early 2007.

“Organizations today are looking for solutions that will improve access to all of their communications, including e-mail, fax and voicemail,” said Donna Conner, Group Product Manager of Exchange Server at Microsoft Corp. “AudioCodes’ SIP VoIP Gateways will allow businesses to cost effectively and quickly integrate the new unified messaging feature in Exchange “12” with their existing legacy voiceswitching infrastructure”.

Unified messaging features in Exchange "12", built on the foundation of VoIP and SIP, deliver voice mail and faxes to the Exchange inbox where, like e-mail, they can be accessed by Outlook, Outlook Web Access, mobile devices, and any phone through Outlook Voice Access, a new and rich speechenabled access method. SIP VoIP Gateways enable Exchange connectivity with the substantial installed base of legacy enterprise voice switches (Private Branch Exchange, a.k.a PBX). AudioCodes ensures interoperability of its SIP VoIP Gateways with leading PBXs from vendors such as Nortel, Avaya, Mitel, Alcatel, Siemens and NEC, among others.

“We are very pleased to be part of this exciting, new solution from Microsoft for the enterprise market,” said Lior Weiss, Vice President of the Media Gateway Business Line at AudioCodes, “Extending the Exchange vision by bringing new valuable content of voice and fax to the inbox will increase enterprise productivity and save administration costs by consolidating IT infrastructure. As the market begins to adopt Exchange “12” and additional Microsoft SIP-related products, AudioCodes will enable this evolution with a wide range of SIP VoIP gateways.”

The Mediant™ 2000 High density gateway and MediaPack™ Analog Gateways are SIP VoIP Gateways offered in densities ranging from 4 analog ports to 4 E1 or T1 spans, effectively supporting thousands of enterprise seats. The gateways enjoy industry leading (confirmed by ETSI) voice quality, and are designed for accurate speech recognition and ensuring toll quality voice in a geographical distributed deployment.

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The Mediant and MediaPack Gateways are available through approved distributors, worldwide. Additional information is available at http://www.audiocodes.com/ChannelPartnerLocator.aspx

AudioCodes will be exhibiting at VON Spring, San Jose, California, 14-17 March 2006 at Booth

#1309.

About AudioCodes

AudioCodes Ltd. (NASDAQ: AUDC) enables the new voice infrastructure by providing innovative, reliable and cost-effective Voice over Packet technology and Voice Network products to OEMs, network equipment providers and system integrators. AudioCodes provides its customers and partners with a diverse range of flexible, comprehensive media gateway and media processing technologies, based on VoIPerfect™ – AudioCodes’ underlying, best-of-breed, core media gateway architecture. The company is a market leader in voice compression technology and is a key originator of the ITU G.723.1 standard for the emerging Voice over IP market. AudioCodes voice network products feature media gateway and media server platforms for packetbased applications in the converged, wireline, wireless, broadband access, and enhanced voice services markets. AudioCodes enabling technology products include VoIP and CTI communication boards, VoIP media gateway processors and modules, and CPE devices. Its customers include the leading telecom and data network equipment providers globally. AudioCodes’ headquarters and R&D facilities are located in Israel with an R&D extension in the U.S. Other AudioCodes’ offices are located in Europe, the Far East, and Latin America. For more information on AudioCodes, visit www.audiocodes.com.

Statements concerning AudioCodes' business outlook or future economic performance; product introductions and plans and objectives related thereto; and statements concerning assumptions made or expectations as to any future events, conditions, performance or other matters, are "forward-looking statements'' as that term is defined under U.S. Federal securities laws. Forward-looking statements are subject to various risks, uncertainties and other factors that could cause actual results to differ materially from those stated in such statements. These risks, uncertainties and factors include, but are not limited to: the effect of global economic conditions in general and conditions in AudioCodes' industry and target markets in particular; shifts in supply and demand; market acceptance of new products and continuing products' demand; the impact of competitive products and pricing on AudioCodes' and its customers' products and markets; timely product and technology development/upgrades and the ability to manage changes in market conditions as needed; and other factors detailed in AudioCodes' filings with the Securities and Exchange Commission. AudioCodes assumes no obligation to update the information in this release.

AudioCodes, AC, Ardito, AudioCoded, NetCoder, TrunkPack, VoicePacketizer, MediaPack, Stretto, Mediant, VoIPerfect and IPmedia and Your Gateway to VoIP are trademarks or registered trademarks of AudioCodes Limited. All other products or trademarks are property of their respective owners.

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