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Vision & Portfolio Strategy Lloyd Halvorsen 303 538 8815 lahalvorsen@avaya. com Vision & Portfolio Strategy Lloyd Halvorsen 303 538 8815 [email protected] com

The Unification of Communications & Information: Driving the Enterprise End User Networks & Applications The Unification of Communications & Information: Driving the Enterprise End User Networks & Applications Communications Systems Environment for Effective & Contextual Collaboration cost and speed delivery of services to simplify complex environments CREATE INTEGRATE LOWER HIGHLY CONFIDENTIAL UNTIL RELEASED IN JANUARY 2010 - © 2009. All rights reserved. 2

An Ideal Unification Approach Has Not Yet Emerged… Proprietary Architectures No Common Management Rip An Ideal Unification Approach Has Not Yet Emerged… Proprietary Architectures No Common Management Rip & Replace Disconnected User Experience Inconsistent Standards Limited Context HIGHLY CONFIDENTIAL UNTIL RELEASED IN JANUARY 2010 - © 2009. All rights reserved. 3

Communications Is The Right Approach Communications Multi Media Real Time Open Interoperable Multi Modal Communications Is The Right Approach Communications Multi Media Real Time Open Interoperable Multi Modal Scale Multi Network Performance Multi Application Reliability Security HIGHLY CONFIDENTIAL UNTIL RELEASED IN JANUARY 2010 - © 2009. All rights reserved. 4

The Avaya Vision… PLUG & PLAY COMMUNICATIONS HIGHLY CONFIDENTIAL UNTIL RELEASED IN JANUARY 2010 The Avaya Vision… PLUG & PLAY COMMUNICATIONS HIGHLY CONFIDENTIAL UNTIL RELEASED IN JANUARY 2010 - © 2009. All rights reserved. 5

Plug & Play Communications Is… PLUG & PLAY COMMUNICATIONS Powered by SIP: Open & Plug & Play Communications Is… PLUG & PLAY COMMUNICATIONS Powered by SIP: Open & Standardized Delivering Communications Enabled Business Systems Enabling Effective & Contextual Collaboration HIGHLY CONFIDENTIAL UNTIL RELEASED IN JANUARY 2010 - © 2009. All rights reserved. 6

Delivering Value Across the Enterprise… End User Simplified Communications 4 Smooth transition across 4 Delivering Value Across the Enterprise… End User Simplified Communications 4 Smooth transition across 4 modalities 4 4 Contextual & persistent communications 4 Line of Business Agility Improved time to value Lower cost per transaction Higher customer satisfaction IT Increased Speed at a Lower Cost 4 Smooth evolution 4 Lower Capital & Operational Costs 4 Rapid deployment HIGHLY CONFIDENTIAL UNTIL RELEASED IN JANUARY 2010 - © 2009. All rights reserved. 7

Plug and Play Communications: Streamlined, Automated, Contextual Seamless multimodal communication Persistent Context “Follow me” Plug and Play Communications: Streamlined, Automated, Contextual Seamless multimodal communication Persistent Context “Follow me” personal profiles End User Line of Business Facilitate human touch points Faster exception management Lower ongoing operating expenses and improved TCO Increased productivity Non-disruptive upgrade in multivendor environments Faster time to market Rapid deployment of new features and applications IT HIGHLY CONFIDENTIAL UNTIL RELEASED IN JANUARY 2010 - © 2009. All rights reserved. 8

Ready to Lead & Deliver Plug & Play Communications Powered by SIP: Open & Ready to Lead & Deliver Plug & Play Communications Powered by SIP: Open & Standardized Leadership & Common Vision for SIP Delivering Communications Enabled Business Systems First to Deliver Communication Enablement Enabling Effective & Contextual Collaboration Most Experienced In Contextual Communications HIGHLY CONFIDENTIAL UNTIL RELEASED IN JANUARY 2010 - © 2009. All rights reserved. 9

Providing a Roadmap for Every Customer Protect 4 Upgrade vs. Rip & Replace 4 Providing a Roadmap for Every Customer Protect 4 Upgrade vs. Rip & Replace 4 Ongoing & Richer Support 4 Investment Protection Extend 4 SIP Platform 4 New Device Support & Common UI 4 Simplified SOA Applications Development Grow 4 Next Generation Communications Platform 4 Breakthrough Capabilities 4 Avaya and 3 rd Party Applications HIGHLY CONFIDENTIAL UNTIL RELEASED IN JANUARY 2010 - © 2009. All rights reserved. 10

Starting Point: The Avaya Enterprise Portfolio Unified Communications Collaboration Solutions Contact Center Interaction Solutions Starting Point: The Avaya Enterprise Portfolio Unified Communications Collaboration Solutions Contact Center Interaction Solutions Communication Manager Application Enablement Performance Analytics Presence Services Session Manager Deskphones Clients Carrier Network System Manager Video Endpoints HIGHLY CONFIDENTIAL UNTIL RELEASED IN JANUARY 2010 - © 2009. All rights reserved. 11

The Going Forward Avaya UC Portfolio: Enhanced by Nortel - Capabilities and Speed Messaging The Going Forward Avaya UC Portfolio: Enhanced by Nortel - Capabilities and Speed Messaging Conferencing Mobility IT Environment Avaya ACE Application & Services Integration Voice/Video Services Presence Services Session Manager Communication Infrastructure System Manager Carrier Networks Data Infrastructure Multivendor Communications Deskphones Clients Video Endpoints HIGHLY CONFIDENTIAL UNTIL RELEASED IN JANUARY 2010 - © 2009. All rights reserved. 12

The Going Forward Avaya CC Portfolio: Enhanced by Nortel - Capabilities and Speed Dialer The Going Forward Avaya CC Portfolio: Enhanced by Nortel - Capabilities and Speed Dialer CRM WFO Dynamic Agent Session Recorder Agent Environment Performance Center Conference Persistence Work Assignment Engine Avaya ACE Application & Services Integration Multi-Channel Service Voice/Video Services Presence Services System Manager Consumer Collaboration Session Manager Self-Service Environment IVR Customer Web Chat Email Customer Experience Portal HIGHLY CONFIDENTIAL UNTIL RELEASED IN JANUARY 2010 - © 2009. All rights reserved. 13

The Going Forward SMEC Portfolio: Evolutionary Path for All Customers TDM/Key Systems Hybrid IP The Going Forward SMEC Portfolio: Evolutionary Path for All Customers TDM/Key Systems Hybrid IP PBX SIP Software Avaya PARTNER® Avaya IP Office Avaya SCS Avaya Integral 5 Avaya BCM Avaya Norstar HIGHLY CONFIDENTIAL UNTIL RELEASED IN JANUARY 2010 - © 2009. All rights reserved. 14

Avaya Aura™ A New Era of Business Communications HIGHLY CONFIDENTIAL UNTIL RELEASED IN JANUARY Avaya Aura™ A New Era of Business Communications HIGHLY CONFIDENTIAL UNTIL RELEASED IN JANUARY 2010 - © 2009. All rights reserved.

Major IPT Market Technology Shifts Data Network Evolution End-to-End IP Presence Commoditization of Voice Major IPT Market Technology Shifts Data Network Evolution End-to-End IP Presence Commoditization of Voice Services Application Integration HIGHLY CONFIDENTIAL UNTIL RELEASED IN JANUARY 2010 - © 2009. All rights reserved. © 2009 Avaya Inc. 16

Evolution of Communications Architecture Past Future Present Application Connection Mgmt Access Application Connection Mgmt Evolution of Communications Architecture Past Future Present Application Connection Mgmt Access Application Connection Mgmt App IP SIP Connection Mgmt IP H. 323 IP SIP Access Legacy TDM IP Telephony Enterprise IMS HIGHLY CONFIDENTIAL UNTIL RELEASED IN JANUARY 2010 - © 2009. All rights reserved. © 2009 Avaya Inc. 17

Requirements for Next Generation Network Time to Market Business Continuity Simplicity Lower TCO Modularity Requirements for Next Generation Network Time to Market Business Continuity Simplicity Lower TCO Modularity Standard Based Flexible Media HIGHLY CONFIDENTIAL UNTIL RELEASED IN JANUARY 2010 - © 2009. All rights reserved. © 2009 Avaya Inc. 18

Avaya Aura™ An Architecture and More 4 An Architecture - Avaya Aura™ Communication Manager Avaya Aura™ An Architecture and More 4 An Architecture - Avaya Aura™ Communication Manager Application Enablement Presence System Manager Session Manager A Next Generation Network (NGN) architecture 4 A Product – encompassing the services featuring an Avaya has historically sold, and a platform for enterprise wide future services approach 4 A Communication Core – Foundation for a new SIP-based loosely-coupled architecture that flexibly connects users, applications and systems across the whole enterprise 4 Wrap & Embrace – Competitive legacy infrastructure can be leveraged yielding immediate cost savings today while providing for gradual migration to service centric integration for users. HIGHLY CONFIDENTIAL UNTIL RELEASED IN JANUARY 2010 - © 2009. All rights reserved.

Reduce Complexity in Communications Architecture App 1 Contact Center Data Centers App 2 Avaya Reduce Complexity in Communications Architecture App 1 Contact Center Data Centers App 2 Avaya Aura™ Communication Manager App N Chicago Apps Service Providers Enterprise Network Avaya Cisco New York Rome Cisco Rome Avaya Contact Center London Nortel Hong Kong Siemens Mumbai Contact Center Users anywhere Mumbai Frankfurt Avaya New York Avaya Contact Center Chicago London Nortel Hong Kong Siemens Frankfurt Creating Order from Chaos HIGHLY CONFIDENTIAL UNTIL RELEASED IN JANUARY 2010 - © 2009. All rights reserved. © 2009 Avaya Inc. 20

Simplify 4 One enterprise dial-plan for all systems, centrally managed Apps Contact Center Chicago Simplify 4 One enterprise dial-plan for all systems, centrally managed Apps Contact Center Chicago Service Providers Avaya New York Cisco Rome Avaya Users anywhere Contact Center London Nortel Hong Kong Siemens Frankfurt Mumbai 4 Lower Cost of Ownership from – Enterprise-wide on-net calling – Global least-cost routing – Call out from the best location or country (“hop off”) – Central SIP trunks – Reduce location-specific trunking 4 Easily integrate multi-vendor legacy systems (with SIP gateways) 4 Upgrade systems incrementally – Link legacy systems to central apps – Move people one-by-one to core HIGHLY CONFIDENTIAL UNTIL RELEASED IN JANUARY 2010 - © 2009. All rights reserved.

Avaya Aura™ A New Era of Business Communications Architecture HIGHLY CONFIDENTIAL UNTIL RELEASED IN Avaya Aura™ A New Era of Business Communications Architecture HIGHLY CONFIDENTIAL UNTIL RELEASED IN JANUARY 2010 - © 2009. All rights reserved.

Avaya Aura™ Solving Business Challenges Business Challenge • Heterogeneous multi-vendor mix of TDM and Avaya Aura™ Solving Business Challenges Business Challenge • Heterogeneous multi-vendor mix of TDM and IP • Too complex and costly to “rip and replace” everything in one step • How to get significant cost savings now? • How to securely add incremental UC applications now? Solution delivering Cost savings, TCO, Productivity • Provide core SIP routing for the entire existing infrastructure • Implement a centralized dial-plan, on-net calling, SIP trunking to core, TEHO, enterprise wide alternate routing, … • Expose rich centralized SIP applications such as conferencing, messaging, and IVRs to all users in the enterprise • Allow new innovative SIP services to be delivered to any user in the enterprise in a timely, cost-effective manner HIGHLY CONFIDENTIAL UNTIL RELEASED IN JANUARY 2010 - © 2009. All rights reserved. © 2009 Avaya Inc. 23

Avaya Aura™ – Centralized Applications Voice Portal Modular Messaging Meeting Exchange SIP Avaya Aura Avaya Aura™ – Centralized Applications Voice Portal Modular Messaging Meeting Exchange SIP Avaya Aura Core Session Manager SIP Communication Manager Branch Third Party PBX HIGHLY CONFIDENTIAL UNTIL RELEASED IN JANUARY 2010 - © 2009. All rights reserved. © 2009 Avaya Inc. 24

Avaya Aura™ Architecture Application App System Manager Application Platform Avaya Aura Core Media Servers Avaya Aura™ Architecture Application App System Manager Application Platform Avaya Aura Core Media Servers Session Manager Connection MM MX VP CM Session Manager Application Platform SIP Presence Service Providers SIP Trunks TDM Trunks SBC Avaya one-X® SIP endpoints Access ooo 3 rd Party Avaya SIP endpoints CM Branch Avaya SIP Gateway CM Standalone 3 rd Party PBXs HIGHLY CONFIDENTIAL UNTIL RELEASED IN JANUARY 2010 - © 2009. All rights reserved.

Avaya Aura™ Architecture #10 – New Innovative SIP Services Application System Manager MM MX Avaya Aura™ Architecture #10 – New Innovative SIP Services Application System Manager MM MX App VP CM Application Platform Service Providers #9– Centralized Applications #11 – Centralized Management Connection Avaya Aura Core #1 – Centralized. Session Dialplan Session Manager Media Servers #3 – Enterprise Policies SIP Trunks Session Manager SBC TDM Trunks #4 – Centralized Trunking SIP Gateway #2 – On-Net Calling ooo Avaya CM Branches ooo #5 – Reduce Edge Trunking Access Avaya CM Standalone ooo 3 rd Party SIP Endpoints Avaya One-X SIP Endpoints #8– Hardware Reduction 3 rd Party PBXs #7 – Multi-Vendor Support #6 – Tail-End Hop-Off HIGHLY CONFIDENTIAL UNTIL RELEASED IN JANUARY 2010 - © 2009. All rights reserved. © 2009 Avaya Inc. 26

Avaya Aura™ Architecture – Strategic View Application System Manager Media Servers Connection App Application Avaya Aura™ Architecture – Strategic View Application System Manager Media Servers Connection App Application Platform Avaya Aura Core Session Manager MM MX VP CM Session Manager SIP Presence Application Platform Service Providers SIP Trunks SBC Access Avaya one-X® SIP endpoints 3 rd Party SIP endpoints HIGHLY CONFIDENTIAL UNTIL RELEASED IN JANUARY 2010 - © 2009. All rights reserved.

Avaya Aura™ Business Benefits Lower TCO Business Agility Evolutionary and Open Reduce telecommunications costs Avaya Aura™ Business Benefits Lower TCO Business Agility Evolutionary and Open Reduce telecommunications costs by integrating multi-vendor systems into a single dial-plan Introduce lower cost SIP trunking centrally Reduce management, energy and hardware costs with consolidated software-based architecture On-net calling and Tail-End Hop-Off (TEHO) significantly reduce long distance & international charges Quickly deploy UC and contact center applications to distributed locations & people Integrate communications with business applications Integrate multi-vendor systems allowing gradual replacement of legacy investments Maintain all existing features while incrementally adding new technologies Rich integration with Microsoft, IBM, Google and other business applications Open standards and multi-vendor interoperability eliminates “lock in” HIGHLY CONFIDENTIAL UNTIL RELEASED IN JANUARY 2010 - © 2009. All rights reserved. © 2009 Avaya Inc. 28

Avaya Aura™ Business Benefits Reliability Scalability Security Session Manager instances run in Active-Active mode Avaya Aura™ Business Benefits Reliability Scalability Security Session Manager instances run in Active-Active mode Session Manager instances may be deployed in a geographically disperse manner Enterprise users binds to multiple core elements Alternate routing decisions are made at an Enterprise level Integrates 25, 000 disparate locations Binds 250, 000 unique enterprise users to core services Core Routing supports 2. 5 million Busy-Hour Call Completions (BHCC) Each Session Manager instance support 50, 000 TLS connections Some SBC functionality built into core elements (SIP firewall, endpoint rate limiting, Do. S protection, …) User passwords may be local stored or verified via AAA authentication HIGHLY CONFIDENTIAL UNTIL RELEASED IN JANUARY 2010 - © 2009. All rights reserved. © 2009 Avaya Inc. 29

Avaya Aura™ A New Era of Business Communications Enterprise Solutions Benefits for the Business Avaya Aura™ A New Era of Business Communications Enterprise Solutions Benefits for the Business User HIGHLY CONFIDENTIAL UNTIL RELEASED IN JANUARY 2010 - © 2009. All rights reserved.

Business Agility, Empowered People 4 One profile mapping each business user to their communications Business Agility, Empowered People 4 One profile mapping each business user to their communications applications Business User Benefits – The same applications and number Shared Applications SIP Trunking Avaya Aura™ wherever people go, world-wide – Quickly add different capabilities for different people and workgroups 4 Centralized communications – Unified communications & messaging – Video, web and audio conferencing – Connect stores and branches – Speech and video self service – Enterprise-wide reporting & analytics 4 Open application ecosystem – Common business application integration – New Dev. Connect partner applications – Service provider and SI engagement – Managed within enterprise data centers HIGHLY CONFIDENTIAL UNTIL RELEASED IN JANUARY 2010 - © 2009. All rights reserved.

Customer Service Everywhere Intelligent Customer Routing Customer Benefits SIP Trunking Voice Portal Avaya Aura™ Customer Service Everywhere Intelligent Customer Routing Customer Benefits SIP Trunking Voice Portal Avaya Aura™ Voice Portal 4 Enhance customer experience – Consistent brand image everywhere – Speech and video self service – Enrich stores and branches – Increased first-call resolution – Access to the right knowledge 4 Reduce enterprise costs – Voice Portal qualification, routing, self service, and reporting on any call – Leverage experts across the enterprise – Route to the right agent when needed – Session Manager connects end-to-end with central control, eliminating “CTI pre-route” overheads and lowering TCO HIGHLY CONFIDENTIAL UNTIL RELEASED IN JANUARY 2010 - © 2009. All rights reserved.

Traditional TDM/H. 323 CTI Architecture SIP Enterprise Data Agents SIP Service Provider CTI IVR Traditional TDM/H. 323 CTI Architecture SIP Enterprise Data Agents SIP Service Provider CTI IVR ACD CTI middleware (“parallel network”) is required to provide intelligence to limited telephony protocols HIGHLY CONFIDENTIAL UNTIL RELEASED IN JANUARY 2010 - © 2009. All rights reserved. © 2009 Avaya Inc. 33

SIP Architecture Evolution Avaya Aura. TM Session Manager SIP Enabled Agents SIP SP/ SIP SIP Architecture Evolution Avaya Aura. TM Session Manager SIP Enabled Agents SIP SP/ SIP GW SIP Voice Portal SIP ACD SIP Business Applications Intelligent applications and protocol enable rich handoffs and eliminates CTI middleware complexity HIGHLY CONFIDENTIAL UNTIL RELEASED IN JANUARY 2010 - © 2009. All rights reserved. © 2009 Avaya Inc. 34

CTI Synchronization replaced by SIP UUI-based Call Context Integration SIP Voice Portal SIP ACD CTI Synchronization replaced by SIP UUI-based Call Context Integration SIP Voice Portal SIP ACD Agent Desktop INVITE sip: [email protected] dr. avaya. com SIP/2. 0 Via: SIP/2. 0 UDP proxy. dr. avaya. com To: Sales From: Customer Call-ID: 11111 ………. . MIME Intent: Sales Customer Name: John Smith Account Number: 66583974 Customer Value: Gold HIGHLY CONFIDENTIAL UNTIL RELEASED IN JANUARY 2010 - © 2009. All rights reserved.

Avaya Aura™ System Manager 4 Hide administration complexity – Enter user information once – Avaya Aura™ System Manager 4 Hide administration complexity – Enter user information once – Centralized enterprise-wide dialplans, TEHO, etc. 4 Simplify enterprise security – Automated certificate distribution – Corporate certificate authority integration 4 Serviceability and trouble shooting – Consolidated logs of all elements – Alarm consolidation – SNMP, Avaya service desk 4 Extensible “plug-in” framework HIGHLY CONFIDENTIAL UNTIL RELEASED IN JANUARY 2010 - © 2009. All rights reserved. © 2009 Avaya Inc. 36

Avaya Aura™ – Centralized Dial Plan PSTN Data Center 1 SIP Trunks SM SM Avaya Aura™ – Centralized Dial Plan PSTN Data Center 1 SIP Trunks SM SM Data Center 2 Communication Manager (Standby) Communication Manager (Active) 45 -XXX 445 -XX Contact Center Regional Office OOO 22 -XXXXX 630 -XXXX Field Office Sales Office OOO i 120 OOO 4 25, 000 locations 4 Multi-vendor with “SIP adaptation” – Nortel, Cisco, Service Providers, … 4 One dial plan to manage in Session Manager HIGHLY CONFIDENTIAL UNTIL RELEASED IN JANUARY 2010 - © 2009. All rights reserved. © 2009 Avaya Inc. 37

Avaya Aura™ – On-Net Calling Avaya Aura Core Session Manager Enterprise Network Denver Tokyo Avaya Aura™ – On-Net Calling Avaya Aura Core Session Manager Enterprise Network Denver Tokyo To This (“On-Net Call”) From This (“International Call”) Local Trunk $ $$ $ Denve r PSTN Local Trunk Global Service Provider NTT PSTN HIGHLY CONFIDENTIAL UNTIL RELEASED IN JANUARY 2010 - © 2009. All rights reserved. © 2009 Avaya Inc. 38

Avaya Aura™ – Tail-End Hop-Off Avaya Aura Core Session Manager Enterprise Network Denver Tokyo Avaya Aura™ – Tail-End Hop-Off Avaya Aura Core Session Manager Enterprise Network Denver Tokyo To This (“On-Net Call + Local Call”) From This (“International Call”) Local Trunk $ $$ $ Denve r PSTN Local Trunk Global Service Provider NTT PSTN HIGHLY CONFIDENTIAL UNTIL RELEASED IN JANUARY 2010 - © 2009. All rights reserved. © 2009 Avaya Inc. 39

Avaya Aura™ – Call Admission Control 4 “Star” configurations supported 4 RTP assumed to Avaya Aura™ – Call Admission Control 4 “Star” configurations supported 4 RTP assumed to travel over WAN with signaling 4 Location based 4 Administrator specifies for each location – Average call usage – Total bandwidth to manage 4 Multiple SIP entities per location 4 Intra-location calls are not counted in CAC (WAN) Single Avaya Aura Core Session Manager WAN Pipe Entity Links Location ooo CM ooo 3 rd Party PBX CM HIGHLY CONFIDENTIAL UNTIL RELEASED IN JANUARY 2010 - © 2009. All rights reserved. © 2009 Avaya Inc. 40

Load Balancing 4 SIP Load Balancing is Necessary to Support SM – Voice Portal Load Balancing 4 SIP Load Balancing is Necessary to Support SM – Voice Portal MPPs – Modular Messaging MASs – Other SIP Entities Deployed for Redundancy 4 Entities to Load Balance may be Identified by – DNS SRV Records x 6 Dual Processor – Local Host Administration 4 Advanced Load Balancing – Automatic Entity Enable/Disable with OPTIONS check – Random Distribution – Priority Weighting x 2 MAS 1 MAS 3 Quad Processor MAS 2 Single Processor HIGHLY CONFIDENTIAL UNTIL RELEASED IN JANUARY 2010 - © 2009. All rights reserved.

The New Avaya 4 Delivering new Business PLUG & PLAY COMMUNICATIONS Value with Avaya The New Avaya 4 Delivering new Business PLUG & PLAY COMMUNICATIONS Value with Avaya Aura™ Platform 4 Evolutionary Path For Every Customer 4 Lower TCO 4 Accelerated Applications Innovation 4 Expanded Partnerships Around the World 4 Expanded Services HIGHLY CONFIDENTIAL UNTIL RELEASED IN JANUARY 2010 - © 2009. All rights reserved. 42

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Unified Communications Integration Roadmap Unified Communications Integration Roadmap

Key Topics Leadership Vision Portfolio Strategy Roadmap Global Unified Communications market leader uniquely focused Key Topics Leadership Vision Portfolio Strategy Roadmap Global Unified Communications market leader uniquely focused on enterprise communications No boundaries – driving productivity and accelerating business across the enterprise Protect existing investments Extend with new applications and value Grow into future enterprise-wide architecture Evolutionary path for every customer

Avaya. N – Global UC Market Leadership Global Unified Communications revenue share Nortel Enterprise Avaya. N – Global UC Market Leadership Global Unified Communications revenue share Nortel Enterprise 11% #1 Unified Communications revenue 1 #1 Telephony Solutions revenue 1 Avaya 21% #1 Audio Conferencing licenses 2 #1 Enterprise messaging revenue 3 Others 29% #1 Maintenance Services revenue 4 Cisco 18% Siemens 10% Alcatel- Lucent 11% Growing to a $20 billion market Gartner Magic Quadrant Leader in Unified Communications, Enterprise Communications and Contact Center quadrants 5 Avaya named to the 2009 world’s most ethical companies list NOTE: Current analyst data includes results for LG-Nortel and other shipment activity that will be restated and may change in future analyst reports. Source: Dell’Oro Group, Calendar 2008 Source: [1] Dell’Oro Group; [2] MZA, Ltd; [3] T 3 i Group; . [4] Intellicom; [5] Gartner Inc.

Meeting Business Objectives 4 Leverage investments 4 Lower TCO and eliminate complexity 4 Incremental Meeting Business Objectives 4 Leverage investments 4 Lower TCO and eliminate complexity 4 Incremental “self-funded” ROI 4 Grow customer base 4 Be more agile than competitors 4 Accelerate business processes

Unified Communications = No Boundaries Productive collaboration anytime, anywhere Persistent context relevant to every Unified Communications = No Boundaries Productive collaboration anytime, anywhere Persistent context relevant to every task and situation Seamless across multivendor devices and networks Accelerating business processes and applications Responsive mixed media social experiences Mission critical real-time performance

Avaya Unified Communications Portfolio Communications Systems User Collaboration Group Collaboration All current Avaya and Avaya Unified Communications Portfolio Communications Systems User Collaboration Group Collaboration All current Avaya and former-Nortel enterprise communication systems, gateways, and phones Productive user experiences on any device, mobile, desktop, embedded in applications Unified messaging, audio and web conferencing, desktop video, integrated third-party telepresence Avaya Aura™ Flexibly connecting systems, users and applications enterprise-wide PLUG & PLAY COMMUNICATIONS

Unified Communications Roadmap Strategy Protect Extend Grow 4 Continue to benefit with 4 Integrate Unified Communications Roadmap Strategy Protect Extend Grow 4 Continue to benefit with 4 Integrate current systems 4 Evolve to an open and existing systems 4 Upgrade to current SIP-ready releases 4 Richer support and professional services into Avaya Aura™ flexible enterprise-wide real-time architecture 4 Immediate simplification and cost savings 4 New innovations driven with combined investment 4 Share SIP-based applications across all 4 Industry-specific solutions users and locations

Evolutionary Path for Every Customer Legacy Meridian Apps CS 1000 MCS 5100 BCM/SRG Branches Evolutionary Path for Every Customer Legacy Meridian Apps CS 1000 MCS 5100 BCM/SRG Branches Avaya Aura™ Service Providers CS 2100 SL-100 AS 5300 Communication Manager Legacy DEFINITY All current systems can be SIP connected Integral 55 Lower costs, accelerate new application deployment, and serve customers everywhere (Germany/EMEA) Multivendor Protect … Extend … Grow

Unified Communications Roadmap Strategy Commitment to open multivendor solutions Interaction Solutions Collaboration Solutions Performance Unified Communications Roadmap Strategy Commitment to open multivendor solutions Interaction Solutions Collaboration Solutions Performance Analytics Avaya Agile Communication Environment (ACE) Application & Services Integration Voice/Video Services Presence Services Session Manager Data Infrastructure Communications Infrastructure Deskphones Clients Video Endpoints System Manager Evolve to common collaboration and messaging applications ACE accelerates Avaya Aura™ business application integration Integrate AS 5300 SIP services, CS 1000 “NRS” into Avaya Aura™ Leverage common Avaya Aura™ Presence and Instant Messaging Evolve to common management and analytics Extend & grow current CS, CM and leverage data networking Evolve to common SIP phones, clients, video solutions

CS 1000 Roadmap Today 12 Months 18 -30 Months Avaya Aura™ Application & Services CS 1000 Roadmap Today 12 Months 18 -30 Months Avaya Aura™ Application & Services Integration Voice/Video Services Presence Services System Manager Session Manager CS 1000 R 7 CS 1000 Extend value with Avaya Aura™ 4 Compelling ROI 4 Shared SIP Applications 4 Common User Interfaces Upgrades and Extensions BCM branches CS 1000 R 6 (today) BCM branches SIP-based Access 4 1100/1200 SIP phones Avaya Aura™ ready upgrade Meridian Continue to add CS 1000 phones and systems

CS 1000 Roadmap Today 12 Months 18 -30 Months Avaya Aura™ Integrate and extend CS 1000 Roadmap Today 12 Months 18 -30 Months Avaya Aura™ Integrate and extend CS 1000 R 6 (today) Integrate and extend CS 1000 R 7 Upgrades and Extensions upgrade Meridian 4 Upgrade to R 6 for features, support and latest SIP 4 SIP-integrate with Avaya Aura today, leverage ACE 4 Upgrade BCM/branch to SIP 4 Lower multivendor costs 4 Centrally deploy shared UC and customer service apps 4 Meridian upgrade to CS 1000 or add SIP gateways 4 New customer features, common Presence and IM, deeper NRS integration within Session Manager 4 Add new users, lines, any type of phone as needed 4 1100/1200 SIP phones will become Avaya Aura ready Grow with Avaya Aura 4 Distributed SIP architecture 4 Context-aware, any-media 4 Common UC applications and clients across portfolio 4 Communications enabled business applications 4 Consistently serve customers everywhere

Evolutionary Choices Add New Systems/ Lines ACM CS 1000 Integrate into Avaya Aura™ Voice/ Evolutionary Choices Add New Systems/ Lines ACM CS 1000 Integrate into Avaya Aura™ Voice/ Video Services Presence Services System Manager Session Manager ACM CS 1000 CM TDM & IP Phones Tactical Strategic

Background slide Avaya Phone and Client Evolution 4 Protect – Support continues for current Background slide Avaya Phone and Client Evolution 4 Protect – Support continues for current phones and clients, following normal lifecycles for the systems they support (CS 1000, Communication Manager, etc. ) 4 Extend – IP Phones 1100 and 1200 series sets will be supported by Avaya Aura™ Session Manager (similar to 9600 series) and Avaya IP Office (2011) – Extend Nortel BCM and Norstar Digital Phones to IP Office (2010) 4 Grow – Evolve to common next-generation SIP-based Avaya one-X® Unified Communications clients leveraging the power of Avaya Aura™ IP Phone 1140 E

CS 2100, AS 5300 Roadmap Today 12 Months 18 -30 Months Application & Services CS 2100, AS 5300 Roadmap Today 12 Months 18 -30 Months Application & Services Integration Voice/Video Services Presence Services System Manager Session Manager Avaya Aura™ Government & target markets AS 5300 CS 2100 SE 13 + SIP/UC features (“SSL” with SE 13) Avaya Aura™ with AS 5300 technology Upgrades and Extensions upgrade SL-100 Continue value today 4 Extend CS 2100 with SIP/UC 4 AS 5300 for government Grow into Avaya Aura™ 4 With AS 5300 technology

CS 2100, AS 5300 Roadmap Today 12 Months 18 -30 Months Avaya Aura™ Government CS 2100, AS 5300 Roadmap Today 12 Months 18 -30 Months Avaya Aura™ Government & target markets Avaya Aura with AS 5300 technology AS 5300 CS 2100 SE 13 + SIP/UC features (“SSL” with SE 13) Upgrades and Extensions upgrade SL-100 4 Integrated AS 5300 solution for gov/target markets 4 Continue with CS 2100 and upgrade to SE 13 release 4 CS 2100 “SSL” adds packaged AS 5300 SIP/UC functionality (in SE 13 today) 4 CS 2100 SIP-integrates with Avaya Aura and ACE today 4 SL-100 upgrade to CS 2100 or add SIP gateways 4 Centrally deploy shared collaboration and customer service applications 4 Add new users, phones, lines as needed 4 New AS 5300 R 2 JITIC features, shared presence with Avaya aura 4 AS 5300 technology integrated into Avaya Aura over next few years 4 Smooth long-term evolution for CS 2100 4 Continuously evolving rich solution for government market (JITIC certified) 4 New shared applications, increased scale, expanding ecosystem

Messaging Roadmap Today 12 Months 18 -30 Months Common Octel Collaboration Solutions continue to Messaging Roadmap Today 12 Months 18 -30 Months Common Octel Collaboration Solutions continue to migrate Modular Messaging upgrade Call Pilot Next Generation Unified Messaging Meridian Mail HMS for Hospitality Continue value today 4 Call Pilot, HMS 4 Modular Messaging aids consolidation 4 Meridian Mail and Octel migration choices Grow into common unified messaging 4 Natural upgrade path

Messaging Roadmap Today 12 Months 18 -30 Months Octel continue to migrate Modular Messaging Messaging Roadmap Today 12 Months 18 -30 Months Octel continue to migrate Modular Messaging upgrade Next Generation Unified Messaging Call Pilot Meridian Mail HMS for Hospitality 4 Continue with Call Pilot, add users as required 4 Continue with Modular Messaging, add users as required 4 Move from Meridian Mail to Call Pilot or Modular Messaging 4 Continue HMS for hospitality market 4 Ongoing releases provide new functionality and continued support 4 Leverage SIP integration 4 Consider messaging consolidation with shared Modular Messaging to lower costs 4 Natural upgrade path for all customers to next-gen SIPbased solution 4 Consistent user experiences with all TUI interfaces available 4 Common investment in future capabilities

Conferencing and MCS Roadmap Today 12 Months 18 -30 Months Common Collaboration Solutions Meeting Conferencing and MCS Roadmap Today 12 Months 18 -30 Months Common Collaboration Solutions Meeting Exchange NMC and MCS 5100 for Conf Common support Clients Video Endpoints Common UC clients & apps MCS 5100 for UC with CS 1000 Meeting Exchange is path forward 4 Richer conferencing, higher scale, multivendor web collaboration support Common UC Experiences 4 SIP-based solutions across portfolio

Conferencing and MCS Roadmap Today 12 Months 18 -30 Months Meeting Exchange NMC and Conferencing and MCS Roadmap Today 12 Months 18 -30 Months Meeting Exchange NMC and MCS 5100 for Conf support Common UC clients & applications MCS 5100 for UC with CS 1000 4 Meeting Exchange delivers Richer conferencing Scheduling/management Higher scale Web collaboration Microsoft, IBM, Adobe Avaya Aura SIP-ready 4 Continued support for NMC • • • (and MCS 5100 conferencing) 4 MCS 5100 for UC available for CS 1000 customers support 4 Meeting Exchange is path forward for new and NMC 4 Use Avaya Aura to deploy Meeting Exchange across many locations & systems 4 Evolve MCS over time to common cross-portfolio Avaya one-X® UC clients and applications with common presence and IM 4 Common investment in a single SIP-based UC, conferencing and collaboration platform 4 Tighter integration of video solutions within broader collaboration portfolio 4 UC feature growth also benefits from AS 5300 technology integration with Avaya Aura

Helping Enterprises Achieve Business Value 4 Embrace all Channel Partners with Avaya Connect 4 Helping Enterprises Achieve Business Value 4 Embrace all Channel Partners with Avaya Connect 4 Rapidly train Partners on Avaya Aura™ and the full Avaya portfolio to Extend and Grow all current systems ote Avaya and Partner Services Grow d Pr ten Ex ct 4 Accelerate business value with comprehensive services to complement Partners – Self Funded Roadmap – Business and Technical Advisory Consulting – Industry and Emerging Technologies – Operations and Support Services

Summary and Next Steps 4 Protect your investments, simplify and lower Summary TCO with Summary and Next Steps 4 Protect your investments, simplify and lower Summary TCO with upgrades and on-going support 4 Extend business value with new SIPconnected productivity applications and accelerate business processes with ACE 4 Grow at your own pace into the Avaya Aura™ enterprise-wide architecture and enhanced collaboration and customer service solutions 4 Adopt current releases, Next Steps become SIP-ready 4 Incrementally add “self funded” application value 4 Start detailed discussions with Avaya and partners PLUG & PLAY COMMUNICATIONS

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