NMS Communications

Slide 2 Safe Harbor Statement This presentation may contain projections or other forward- looking statements regarding future events or the future financial performance of the company. While these statements represent management’s current judgment on the future direction of the business, actual results may differ materially from any future performance suggested in the company’s forward-looking statements. We refer you to the documents that the company files from time to time with the Securities and Exchange Commission. These documents contain and identify important factors that could cause the actual results to differ materially from those contained in our projections or forward-looking statements.

Slide 3 NMS Communications at a Glance Applications & platforms for value-added services Leader in ringback tone service deployments Technology expertise spans network to handset Products deployed in operator networks in 100+ countries 25 year history of successes and industry “firsts” 400+ employees; global presence

Slide 4 Investment Summary Focused on high growth Value Added Services markets Implemented cost reductions and strategic shift to lower cost development RBT leader introducing new applications, extended services & new business model Technology business entering strong new products cycle

Operator Conundrum Voice MOU continue to rise: price continues to drop Not enough ROI for network and technology investments made Operators need new and innovative value added services to grow Operators need more help making VAS successful $85 billion services market in 2005 – growing to $206 billion in 2010

Slide 6 Mobile Centrex Video messaging Mobile video services Voice and Video SMS Video, audio and web conferencing IVVR Speech-driven applications Contact center solutions Unified communications IP PBX Modular Application Platforms Open Access ™ and Vision Platforms for voice, video, and data applications and services Any network, anywhere, TDM, IP, IMS Software, components & servers, cPCI, PCI Express, AdvancedTCA Fast time-to-market Leading technology, tool set for development and deployment World class supply chain, global support

$36 $2.00 $5.00 $0.12 Example RBT 1 st Yr Value Per Sub Increasing Value Building & Sustaining Value Services Revenue Subscription + Content + Access Technology Applications Professional & Managed Services $85 Billion Services Revenue I&C, M&S, Pro Services Managed Services

Slide 8 MyCaller Ringback Diverse personalization options Viral marketing accelerators Complete content management Comprehensive reporting Any phone, any network Drive subscription and content revenue Business & Ad models Features Value Proposition Unique Selling Points First in operator deployments Ringback knowledge experts Marketing services capabilities

MyCaller Ringback Subscribers

MyCommunity TM Messaging Personalized multimedia messages Easier to use than texting Wide repertoire of avatars, other content Any phone, any network Drives transactions revenue New source of content revenue Features Value Proposition Unique Selling Points Voice and video functionality Talking video message (Avatar) First to market Build on MyCaller investment

Slide 11 Strategic Summary Services Revenue Subscription + Content + Access Technology Applications Professional & Managed Services $85 Billion Services Revenue I&C, M&S, Pro Services Managed Services Move to revenue share model Extend technology leadership New design win focus 3 rd Party developer focus Build RBT footprint Expand applications offerings Expand & enhance services offerings

Slide 12 Business Plan & Financial Overview

Product Line Revenues Slide 13

Balance Sheet $20 million share repurchase Slide 14

Slide 15 Target Business Model ** (Non-GAAP) **Not including impact of stock-based compensation and amortization of acquired intangible assets See press release and SEC filings for further information Mobile Apps Pipeline Rev Share Bus Model Right-sized Low Cost Devel. B/E 2H07* *Guidance as of 4/26/07: Q2 revenue substantially higher, 50% reduction in non-GAAP Loss Expect to operate at about breakeven levels on a non-GAAP basis for 2H 2007 High Leverage Drivers

Slide 16 Success in 2007 Multi-year view Value creation through VAS leadership and profitable growth Financial turnaround Break-even or better operations by H2 Approach target model by late 2008/2009 Setting up growth and a solid 2008 Double “subscribers passed” 3X increase in subscribers 2-3 new applications Begin shift to “by the drink” revenue model Major new design wins Continue tight expense control

NMS Communications