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Corporate Presentation May 12, 2011 Zeev Aviv, VP Sales Operation Alex Levin, VP Sales East Europe/Africa

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Always Team Work

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Innovative Leading Supplier of Converged VoIP & Data Solutions for Service Providers and Enterprises Worldwide. Mission Statement

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AudioCodes: A Brief Intro Market leader in VoIP Technology and Products Deployed in over 100 countries in service providers broadband, mobile & enterprise networks Strong brand for quality & performance Global partner to leading telecom players including Alcatel-Lucent, Avaya, Broadsoft, Microsoft, NSN Global distribution network 18 years of operations, Public since 1999

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Main Worldwide Offices: Headquarters: Israel North America: NJ, TX, NC APAC: Singapore, Korea, China, India, Australia EMEA: UK, France, Germany, Russia LATAM: Miami, Brazil, Mexico, Argentina, Colombia 620 Employees R&D (255), Sales & Marketing (225), Operations (90), G&A (50) Israel (410), US (140), Europe (35), APAC (25), LATAM (10) Strong Global Presence

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AudioCodes Performance Snapshot Technology Networking Yearly Historical Revenues (KUSD) Ranked #1 in VoIP chips (1997-2000) Ranked #1 in VoIP communications blades (1998-2006) Ranked #1 in VoIP Medium Density and Low Density media gateways (2008-2010) Focused now on Converged voice & data networking

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AudioCodes Revenues History & plan for 2011 (plan)

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Broadband VoBB Trunking / Peering Hosted VoIP Mobility/Wireless SP Mobile VoIP Enterprise Mobility Fixed Wireless Enterprise IP Telephony and UC network elements Contact Center Focus on 3 Market Segments

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OEM Enterprise DoD Service Providers Channel Solution Partners Offer leading global channel partners broad solutions from a single vendor Partner with leading OEMs to provide reliable and cost effective products Provide Solution Partners best of breed, interoperable products Supply Service Providers and Enterprises with a comprehensive set of flexible, feature rich solutions Our Partners and Channels Go To Market Strategy

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The Communications World: TDMAll IP 2030 All IP World Applications MobileUCC Cloud MSBG SBC IP Phones Residential Gateways Mediant Gateways Communications world is shifting towards an all IP infrastructure Growth driven by desire for unified communications, cloud computing and mobility Incumbent vendors struggle to adapt to demands of newly emerging software applications AudioCodes innovative, interoperable and diverse portfolio of solutions are uniquely positioned to enable this transition What AudioCodes Does AudioCodes

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Our Vision of the emerging network Intelligent IAD/App Intelligent CPE Enterprises Residential The Cloud IP Phones MP-252 Mediant 1000 Multi Media Servers

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Enterprise & Service Provider Solutions VoIP Calls and Broadband Access Domestic and intl. Calling VoIP over Mobile BroadBand Residential Services Business VoIP Service (SIP Trunk) IP-Centrex and Hosted Services Open Source IP Telephony Unified Communications Mobility applications SMB/SME Services Business VoIP Service (SIP Trunk) Managed Enterprise IP telephony Unified Communications Contact Center s Enterprise and Public Sector Fight churn through innovation Increase ARPU by service diversification Reduce TCO while evolving to all IP NGN AudioCodes products help Service Providers:

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Residential ServicesSMB/SME ServicesEnterprise and Public Sector One Stop Shop for VoIP All Your Network Needs, Small and Large In front of the customer, or in the servers room At the premise or in back-office

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Building successful, innovative, low TCO, NGN requires openness and interoperability Our Solution Partners

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Our Service Provider Customers

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Training infrastructure Interoperability, certification and lab support 24x7 Follow the Sun Technical support Never Alone Global Customer Support Regional Customer Support Call Center: Tier1 & Tier 2 AMERICA Regional Customer Support Call Center: Tier1 & Tier 2 ASIA-PACIFIC Corporate Customer Support Tier 3 & Tier 4 Worldwide Corporate Customer Support Tier 3 & Tier 4 Worldwide Regional Customer Support Call Center: Tier1 & Tier 2 EUROPE

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IP Phones High Availability Media Gateways Media Servers (MRFP) Enterprise Gateways & Session Border Controller Recording, Media Gateway & Media Processing Blades VoIP Processors (Chips) Residential/SOHO Gateways Value Added Applications and Soft Clients AudioCodes Product Families

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Growth Opportunities High Definition VoIP Enterprise Unified Communications and Collaboration Enterprise SBC Mobility Microsoft Lync Mobile VoIP Residential Multimedia Home Gateway

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Extends bandwidth range From 200 Hz 3.4 kHz To 50 Hz 7.1 kHz Substantially higher voice quality Superior Clarity, Intelligibility and Richer Sound High Definition VoIP

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190,000 results in the past 10 years HD VoIP enters market mainstream

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Packing a World of HD Vocoders The AudioCodes advantage Industry largest/comprehensive portfolio of WB speech codec technologies Leading the emerging Transcoding market G.722 RTA AMR-WB EVRC-WB G.729.1 G.711.1

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6 commercial mobile HD voice service launches *HD voice services commercially launched in 5 countries September 9, 2009: Orange Moldova launched the worlds first commercial mobile HD voice service. The Nokia 6720c was the first HD voice phone introduced June 3, 2010: Orange France announced the start of HD voice service with availability of Nokia E72 and Nokia 5230 phones from June 10 and Sony Ericsson Quiksilver (a.k.a. Hazel) in early July 2010 June 24, 2010: Orange Armenia launched HD voice service offering the Nokia 6720c phone September 1, 2010: Orange UK launched HD voice service offering variants of the Nokia 5230, Nokia X6, Nokia E5 and Samsung Omnia Pro phones at launch September 2010: SFR launched HD voice in France September 10, 2010: Orange Spain launched HD voice in Catalonia offering Nokia 5230 and Nokia X6 phones

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IPMedia 3000 Media Server AudioCodes HDVoIP Products Mediant 3000 Enterprise and Carrier-grade Media Gateway Mediant 1000 MSBG Multi-service business gateway MP-252 Residential Multi-Media Gateway IP Phones Voice Over Packet Processors & Modules Soft Clients PC/Mobile HD VoIP Products

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September 2010 Enterprise SBC, UCC & Contact Center

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Enterprise Session Border Controllers are used to securely and transparently connect Enterprises to SIP Trunks, Hosted Services and Remote Workers The E-SBC market will grow in next 4 years from 2010 to 2013 to $742 million (Infonetics Research,2009 ) SIP Trunking adoption and E-SBC demand is primary in North America - 68% of total E-SBC deployments. SIP trunking penetration worldwide will drive further growth. Source: Infonetics Research (8 July 2010) Enterprise Session Border Controllers (E-SBC) Soft Switch SIP Trunk IP-PBX IP IP Phones Enterprise SBC SP WAN

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SMBsUp to 24 sessions Multi Service Business Gateway Mediant 800 MSBG Mediant 1000 MSBG Mediant 3000 Border Gateway SMBs and SMEsUp to 150 sessions Multi Service Business Gateway Large Enterprises Up to 1000 sessions Hybrid SBC and PSTN E-SBC AudioCodes E-SBC Line AudioCodes Advantages: Strong PSTN capabilities enable Integrated PSTN/IP Solution Comprehensive DSP capabilities

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Unified communication market to top $1 billion by 2013; Microsoft, Cisco, AT&T top vendors (Infonetics, 2010) Unified communications offers the ability to improve how individuals, groups and companies interact and perform tasks.. Microsoft is the leader in the Unified communications world market (Gartner Magic Quadrant) AudioCodes is a leading partner of Microsoft in providing products which enable enterprises to connect their legacy telephony system with Microsoft Unified Communications networks. Microsoft Unified Communications

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CS recording solution SmartTAP Call Recorder 3 rd party Analog and SIP based Phone Support MGW & Enterprise SBC Legacy TDM PBX Media Gateway E1/T1/BRI/FXO PBX Legacy Fax & other Analog devices Media Gateway Non certified IP PBX Media Gateway IP-PBX SIP IP Phones Fixed Mobile Convergence Enterprise SBC SIP PSTN Networks Media Gateway . TDM Trunks SP PSTN Secured SIP Trunking Enterprise SBC . SP IP WAN SIP Trunks AudioCodes products/Solutions for Microsoft UC

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MxK as E-SBC for SIP Trunking MxK GW as PBX aggregation M8C, M1K GW On-Prem PBX Connectivity M8C, M1K E-SBC On-Prem IP-PBX Connectivity MP11x GW On-Prem Analog Phone Aggregation MxK E-SBC for Remote Worker Bonding MxK Media Server for transcoding and Media VAS M8C, M1K MSBG On-Prem Branch Survivability MxK as GW for TDM Trunking Hosted Contact Center Peripherals Reference Design Contact Center Application

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Mobile VoIP

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Mobile VoIP: The Future of Mobile Communications Increased sales of smartphones and apps Explosion in mobile data drives build-out of Wi-Fi and 3G HSPA Skype and Google Voice drive voice services prices down Economics drives consolidation of data & voice services over same infrastructure (pre-LTE) Improved quality of service Frost & Sullivan: Impact of Mobile VoIP on Next Gen Cellular Networks Global Mobile VoIP Revenues, in USD Billions

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Mobility for UCC in SMB/SME Mobility Gateway Smartphones & Tablets with Mobility Client 3G/LTE All-in-one solution Application Server E-SBC MGW Initially Focused on Microsoft Lync Business Mobile VoIP Gateway Revenues to Soar Past $6 Billion in 2015 In-Stat January 2011 IP-Voice, Instant Messaging, Presence, IP-Video, Collaboration

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Comprehensive end to end solution: From mobile/Web/PC clients to gateways and Client management system Leading Quality of Service solutions and network resiliency schemes tested and implemented Feature rich and robust solutions that are interoperable with all leading mobile operating systems Mobile VoIP: AudioCodes VMAS Value Proposition With AudioCodes VMAS, Service Providers can enjoy the benefits of Mobile VoIP prior to deploying LTE * Substantial increase in deployments in 2010

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Residential Multimedia Home Gateway

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Old market: Separated devices, sold via retail: Modem (ADSL / Cable / XttH) Router / Firewall VoIP ATA New market: Integrated, all-in-one residential device, sold via Service Providers, integrating: 2x2 MIMO Wi-Fi 802.11n, Gigabit LAN, IPv6, HD VoIP, DECT, home PBX, router, access, security. The residential IAD market is expected to reach $1.1B in 2010 and expected to grow by 35%-40% by 2013 (Source: MIC, Aug 2010) IAD market

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MP-252 All in one multimedia Home Gateway

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AudioCodes HDVoIP Products For All Your VoIP Needs Superior Voice Quality Superior Voice Quality Rich Portfolio Rich Portfolio Interoperability Interoperability Uniform Technology Uniform Technology Innovative Innovative

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AudioCodes DNA D evotion O rientation C reation O rganization I nspiration D edication U nderstanding A chievement S uccess E xecution

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Thank You!