1. How to Achieve Carrier-Grade VoIP Roll- Out with Record Time-to-Market and Low Development Cost Majid Foodeei PhD System Architect/ Technical Marketing mfoodeei@centillium.com Centillium Communications, Inc.

2. M. Foodeei, Centillium Comm. VoIP Reality in the Making Broadband access offering Wireless (2G/3G) and WiX and NGN convergence VoIP, “Triple/Quadruple Play” and other services Commitments/roll-out by tier 1 & comp. providers o BT, NTT, KDI, AT&T, SBC o ISPs, Skype Examples of milestones and service roll-out traction o BT vendor select done, Initial live trial/deployment o 30+ million Skype users

3. M. Foodeei, Centillium Comm. Building the Right VoIP Gear: Requirements & Challenges MUST and SHOULD Requirements and Challenges: o Carrier-grade quality o Scalable o Interoperable o Convergence ready (wireless IMS model & NGN VoIP) o 99.999, fault-tolerant, advanced field/live diagnostics and remote monitoring o Feature rich (codecs, network features)

4. M. Foodeei, Centillium Comm. Building the Right VoIP Gear: Requirements & Challenges (cont.) VoIP or VoP for Converged Networks o Same HW & SW for VoIP/PSTN, wireless (2G/3G/…), NGN VoP o Network interworking with and without transcoding o Many advanced network processing features: e.g. 3GPP Iu/Nb, lawful interception o Voice enhancement features (acoustic EC, adap. level control, noise suppression) Remains Top Decision Criteria o Time-to-market o Cost (development, system and maintenance)

5. M. Foodeei, Centillium Comm. Overview of VoIP Development Alternatives Voice Processor Building Block Alternatives o Using general-purpose DSP and NP + multiple SW o Using advanced SoC (DSP+NP+SW) Advantages of Advanced SoC o Accelerates hardware & software development o Lowers cost (development, system, and maintenance) o Better scalable application SW and HW o Better meets high-density and low power requirements How do chip-level variables play into development?

6. M. Foodeei, Centillium Comm. Product Cycle Flow-Chart: From Vendor Selection to Operation Maintenance Given Platform/ Chassis & Board Form Factor Feature set Power Budget Capacity Target Board Space ------ HW Development ------ 1- DSP + NP 2- Aggregation 3- Host (Control & Signaling) 4- Other (Power, Redundancy, etc.) ---- SW Development ---- 1- DSP + NP SW 2- Aggregation SW/Control 3- Host SW Integrated? 3 rd Party? Or Internal? ---- System Testing & QA ---- HW/SW Component Integration -- Field Support/ Maintenance -- Component Fault & Testability Scalability Advanced SoC Advantage -High capacity/Low power -Low chip count (Integrated) -Fast development (Months) -Low cost -Very fast development (Integrated SW) -Common API across scales -Shorter system testing (System tested SoC) -Lower cost and easier support

7. M. Foodeei, Centillium Comm. An Example of Advanced SoC: Inside Entropia-III Sigma+VCU (SigmaPlus) Core 14 MAC/cycle (25 GMAC/sec Entropia-III) For the DSP intensive tasks about 10x performance advantage over the conventional single MAC DSPs (such as TI C54x core) At system level translating to ~5x advantage Built for voice processing (EC & Codec) 1 Gop/sec NP + HW Acc. Integrated Advanced SoC and 3G-NGN System Software Suites ADPCM H/W Other Blocks 3G-NGN System Software Suites (SoC integrated GW-on-chip) (SoC integrated GW-on-chip) Advanced GW-system API Feature AFeature Z

8. M. Foodeei, Centillium Comm. In Production VoIP DSP & SoC * Source: Linley Group Report (Sep. 2004) * Still the Status for In Production Chips in Aug-’05 * All vendors have roadmaps (Best in class relationships remain)

9. M. Foodeei, Centillium Comm. Case Examples of System Advanced System, Provided at SoC Level Lawful interception: Integrated at system-level API 3G wireless advanced features o Tandem-Free and Transcoder Free (TFO/TrFO) o Transcoder and IP-IP/ATM-IP network interworking o 3GPP User-Plane (Iu and Nb) o TTY/TTD/CTM (Cellular Text Mode) o Hand-off and IP-forking Remote Diagnostics and steam capture 128-way conferencing with game options

10. M. Foodeei, Centillium Comm. Case of Time-to-Market & Cost Savings Case A (GP-DSP) o Large and Lengthy (years) Engineering Effort Required 10 to 20 HW designers, Big (~40) DSP design team, o Additional Time for MGCP/SIP, System Test and SQA Additional Time/Cost Case B (Advanced SoC) o Small Engineering Teams 2 people HW design team 2 SW Engineers 2 System QA o First calls setup in 2 weeks after HW o MGCP/SIP MGW deployed in 6 months o UMTS/CDMA2K GW available in done and available in less than one year Time-to-Market Advantage: Turnkey, complete system solution, system-level flexible API Cost: Board/System, Development, & Maintenance

11. Backups

12. M. Foodeei, Centillium Comm. CPE and Small (Atlanta VoIP+Router Products & Pn00 VoIP+Router+DSL Products) Power Supply Flash Street Fighter SDRAM SLAC/SLIC SLAC/SLIC Ethernet MII PCM Atlanta™ 100 Ethernet MII VoIP MTA SOFTWARE ONE Common Software Platform Power Supply Flash Street Fighter SDRAM SLAC/SLIC SLAC/SLIC PCM Atlanta™ 100 VoIP & Security Router 5-portSwitch DMZ MII MII Power Supply Flash Street Fighter SDRAM SLAC/SLIC SLAC/SLIC PCM Atlanta™ 100 Small IP PBX (8 Channel) MII SLAC/SLIC SLAC/SLIC SLAC/SLIC SLAC/SLIC SLAC/SLIC SLAC/SLIC Ethernet Power Supply Flash Street Fighter SDRAM CordlessBase PCM Atlanta™ 100 Cordless VoIP Station and Wireless Router WiFi802.11x Ethernet PCI MII Ethernet MII

13. M. Foodeei, Centillium Comm. Medium to Large Silicon Example (Centillium Entropia Family) Host Street Fighter SDRAM TDM Ethernet POS PCM Entropia 64, 96 ATM Utopia2 VoIP SMB/Med IP-PBX SOFTWARE ONE Common Software Platform Host SDRAM Street Fighter SDRAM TDM PCM Entropia™ 336 Small/Medium GW ATM Ethernet Utopia-2 POS Host SDRAM Street Fighter SDRAM TDM PCM Entropia™ 4672 & 4002 & 4002 (Large) Advanced Wireless/Wireline GW ATM Ethernet Utopia-2 POS Ethernet (G)MII Host SDRAM Street Fighter SDRAM TDM PCM Entropia™ 4001 (Large) Advanced G711 GW ATM Ethernet Utopia-2 POS Ethernet (G)MII