Audiocodes Ltd. — Regulatory Filings 2006

Apr 7, 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 Elizabeth Anderson Alan Weinkrantz And Company Tel: 254-772-5909 Elizabeth@weinkrantz.com

AudioCodes Joins with QUALCOMM to Demonstrate VoIP over CDMA2000 1xEV-DO Rev. A at CTIA

AudioCodes Media Gateway and EV-DO Rev. A Allow Smooth Migration to VoIP

Lod, Israel, April 7, 2006 - AudioCodes (NASDAQ: AUDC), a leading provider of Voice over Packet (VoP) technologies and Voice Network products, today announced their collaboration with QUALCOMM[®] in demonstrating a solution for end-to-end VoIP over CDMA2000[®] 1xEV-DO Rev. A technology during CTIA Wireless 2006.

The companies are demonstrating a complete solution for VoIP calls using EV-DO Rev. A. By modifying the AudioCodes’ Mediant media gateway product line, AudioCodes now supports the VoIP Enhanced Variable Rate Coder (EVRC) codec, developed by QUALCOMM. This enables VoIP handsets to communicate transparently over EV-DO Rev. A networks to AudioCodes’ media gateways, allowing VoIP calls between legacy access subscribers and EV-DO Rev. A subscribers. Smart Blanking technology is a way to achieve Discontinuous Transmission (DTX) in packet-based communications which results in increased capacity and greater efficiency in the network. These EV-DO Rev. A-based technology advancements combined with AudioCodes’ Media Gateways will allow operators to benefit from an extended network capacity, high voice quality and a vast array of VoIP applications.

“AudioCodes has a long history in providing IP media gateway solutions and they were able to rapidly implement a VoIP enhanced solution for us to interoperate with our system,” said Haleh Partow, Vice President of Technical Marketing for QUALCOMM. “AudioCodes’ media gateway solutions are ready to terminate VoIP traffic over EV-DO Rev. A networks and provide the many benefits of using EV-DO Rev. A technology.”

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AudioCodes Joins with QUALCOMM to Demonstrate VoIP over CDMA2000 1xEV-DO Rev. A at CTIA

“AudioCodes, a leader in the VoIP industry believes that EV-DO Rev. A is an excellent option for wireless VoIP and demonstrates the highest level of benefits,” stated Lior Aldema, Vice President of Marketing at AudioCodes. “We are pleased to work with QUALCOMM for this demonstration and believe that this accomplishment validates advanced VoIP over EV-DO Rev. A networks.”

AudioCodes’ Mediant™ family of media gateways are designed as IP-based media processing systems to support Voice over IP (VoIP), as well as Cellular over IP applications. Utilizing Megaco, MGCP or SIP standards-based control signaling, the Mediant media gateways can be easily integrated and deployed into best-of-breed cellular networks. Additionally, the Mediant media gateways also support other access networks, including wireline VoIP, UMTS, GSM and cable, making AudioCodes’ Mediant media gateways an excellent choice to fulfill the current and future needs of the CDMA-based IMS core network. The Mediant family of media gateways can scale from 48 in a 1U and up to 36,000 EVRC channels in a 7’ Telco rack.

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 packet-based 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. Forwardlooking 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. QUALCOMM is a registered trademark of QUALCOMM Incorporated. CDMA2000 is a registered trademark of the Telecommunications Industry Association (TIA USA). All other products or trademarks are property of their respective owners.

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AudioCodes Joins with QUALCOMM to Demonstrate VoIP over CDMA2000 1xEV-DO Rev. A at CTIA