1. HiPath 8000 – Real Time Communications meet IT Data Centers Hanover, CeBIT 2005

2. © Siemens CeBIT 2005 2 Your Challenges … Decrease TCO Protect existing investment even in case of a migration to CoIP Offering highly reliable standards-base voice services Running critical business applications even in multiple subsidiary environments Why Siemens? Why Siemens?

3. © Siemens CeBIT 2005 3 Scenario Highlights CeBit 2005 Highly reliable standards-based voice softswitch for large and very large companies SIP based survivable branch office solutions New ways for offering centralized voice services for independent subsidiaries Why Siemens? Why Siemens?

4. © Siemens CeBIT 2005 4 Customer Technology Profile  Large/ very large Enterprise  Operating many voice switches (Converged IP) from several suppliers  Distributed architecture of system, applications and management  Multiple sites and multiple subsidiaries 08:55 AMWAN connection to branch office goes down, fault alarm in Data Management Center, automatic rerouting of data services only 09:00 AM Mobile phone call from branch office at Voice Management Center, no desk phone calls possible 09:01 AM trouble shooting at Voice Center starts 09:30 AMclarify responsibility in phone conferences between Voice and Data Center 10:30 AM Data Center fixes failure remotely, WAN connection goes up Business and Customers lost, due to 1:30 hours inaccessibility Scenario: Situation Today Why Siemens? Why Siemens?

5. © Siemens CeBIT 2005 5 Open for Business!  Large/ very large Enterprise  Operating one central voice switch, with Survivable Media Gateways  Central installation of system, applications and management  Offering highly reliable voice service New Customer Technology Profile Scenario: Solution Tomorrow 08:55 AMWAN connection to branch office goes down, fault alarm in combined Voice/Data Management Center 08:55 AMSurvivable Media Gateway connects branch automatically to PSTN, re- routing of all data services 09:00 AM Branch office opens, daily business starts 09:01 AM trouble shooting at Voice/Data Center starts 10:00 AM Voice/Data Center fixes failure remotely, WAN connection goes up Business Continuity - no Business and Customers lost Why Siemens? Why Siemens?

6. © Siemens CeBIT 2005 6 Scenario: CeBit configuration HiPath 8000 SIP Overlay Network Data Center SIP-Q Frankfurt Subsidiary 1 PSTN / ISDN Headquarter Hanover Subsidiary 2 HiPath 4000 as GW Management - iSMC Server Applications - HiPath ComAssistant S Branch office LAN Feature Interworking with SIP-Q Survivability with Branch office Media Gateway Powerful Application HiPath ComAssistant S Hall 4 Why Siemens? Why Siemens?

7. © Siemens CeBIT 2005 7 Demonstration  Branch office connection with Survivable Media Gateway solution  Executive Secretary functionality based on SIP  Video conferencing  Pick Up Group  Powerful application suite, e.g HiPath ComAssistant S BU 2 Subsidiary 2 Headquarter BU 1 Subsidiary 1 Branch office Why Siemens? Why Siemens?

8. © Siemens CeBIT 2005 8 Product Highlights Why Siemens? Why Siemens? Highly reliable and scaleable Carrier grade HW&SW architecture Survivable Branch office solution Scalable up to 100.000+ user per cluster Open & Standards-based Easy integration of applications due to open API Comprehensive Siemens client and device portfolio 3 rd party application, phones and gateways Hosting & TCO Centralized/hosted solution Multilayer Management Excellent OPEX&CAPEX

9. © Siemens CeBIT 2005 9 24h Your Benefits  Centralization and IT Integration drive operational costs down (OPEX)  Nonstop operation due to redundancy and Survivable Media Gateways  Open architecture leads to more competition and more choices for the customer (CAPEX)  Smooth evolution path with investment protection and low risk  Advanced IP services improve productivity and reduce expenses  Multi-modal, Presence, Instant Messaging, Collaboration Applications  Consistent end user experience everywhere  Support of  Several deployment models (Hosted)  multi-vendor environments; Interoperability and integration of third party gateways and devices Why Siemens? Why Siemens?

10. © Siemens CeBIT 2005 10 A current study performed by Forrester Research found the following forecast improvements by using HiPath 8000 50% to 62%Reduction in voice technical support 50% to 70% Reduction in administrative support 40% to 55% Facility Savings on server consolidation 25% to 60% Maintenance engineers efficiency increase 15% to 25% Console operators´ increase in call handling capacity 66% to 75% Savings from reduction of MACs charges/costs 45% to 50% Dual cable cost savings 10% to 30%International toll charge savings 7% to 10% Improved communications with Real-Time Applications (Increase of accessibility/productivity for employees) Why Siemens? Why Siemens?

11. © Siemens CeBIT 2005 11 TCO / Example Calculation 5-Year Total Cost of Ownership per User Small 15k users Medium 50k users 5-Year TCO per User Includes: System and UM hardware & software Installation Warranty 4 Years Maintenance (Net Present Value (NPV)) $390 $427 $438 $100 $200 $300 $400 +72% +50% LAN Telephony System Hosted Softswitch System +87% $260 $247 $234 NPV=present value of cash inflow is subtracted from the present value of cash outflows Large 100k users Why Siemens? Why Siemens? LAN Phone System Hosted Softswitch System

12. © Siemens CeBIT 2005 12 Managed ServicesLifecycle ServicesProfessional Services Network Management Security Management Multi-Vendor Support Asset Management Communications Out- Tasking Service/Help Desk Technology Consulting Assessments Customization Systems Integration Design Project Mgmt Remote monitoring, diagnostics, reporting Hardware/software installation, maintenance, fixes, spare parts Moves, Adds, Changes (MAC) Training Manage Educate Support Build Design Consult Our Services Portfolio Why Siemens? Why Siemens?

13. © Siemens CeBIT 2005 13 HiPath ComScendo HiPath ProCenter HiPath OpenScape HiPath MobileOffice Business Applications HiPath MetaManagement and HiPath QoS HiPath SIcurity IP Infrastructure Business Applications Common Application Platform HiPath Servers & Gateways HiPath Ready - Certified Applications Other Applications Huawei HiPath - Total Business Communications Components optiClients, optiPoints and Portals Why Siemens? Why Siemens?

14. © Siemens CeBIT 2005 14 Why Siemens? Highest availability, scaleable and cost efficient solution for enterprises  Supports open standards  SIP leading technology award (Frost & Sullivan)  Excellent CAPEX & OPEX efficiencies of scale  Softswitch and Carrier grade resilience architecture  Complete and consistent HiPath 8000 universe  Seamless migration path from converged IP to SIP

15. © Siemens CeBIT 2005 15 Covering all vertical industry markets Services/Logistics Public/Health/Education US ARMY ? Media/Communications Industry/Retail Insurance/Banking

16. Thank you! Your Questions please!

17. © Siemens CeBIT 2005 17 Very Large Enterprise Typical Environment Today Comm. Platform with Applications Voice Network  Premise-based Hardware Model  Expensive, Disparate Voice Networking  No Centralized Applications

18. © Siemens CeBIT 2005 18 2gIP Unified Domain Enterprise HiPath 8000 Solution  IT Consolidation – Centralization of Services  SIP becomes dominant protocol Hosted System Survivable Media Gateways Standard Voice- Enabled Router Data Center / / Branch Data Center Applications Data Center Applications IP Data Center Applications Mobile Worker Wireless IP SIP HiPath 8000

19. © Siemens CeBIT 2005 19 HiPath 8000 Architecture  Modular Architecture- Enables Easy Integration into Customers Data Infrastructure  Open Interfaces  Communication Broker manages users, gateways, devices  Resilient Telco Platform allows creation of applications with single system image (underlying cluster technology transparent for application)  Operating System: Linux, Solaris Node 1 Node 2 Operating System Cluster Software Resilient Telco Platform Operating System Open API Applications & Services Communication Broker Hardware

20. © Siemens CeBIT 2005 20 PSTN Branch Telecom view versus IT view Telecom and IT PSTN Headquarters LAN WAN HiPath 4000 HiPath 4000 V2.0 HiPath 4000 Digital IP

21. © Siemens CeBIT 2005 21 PSTN Branch PSTN Headquarters LAN WAN HiPath 4000 HiPath 4000 V2.0 HiPath 4000 Digital IP First Generation IP (1gIP) Telecom and IT  Converged Infrastructure (1GIP)  Simplify Management  Reduce WAN Cost  Disparate Applications  Maintain TDM Investment Combine Benefits of TDM and IPExisting TDM Investmentbecomes integral part ofIP Infrastructure

22. © Siemens CeBIT 2005 22 Second Generation IP (2gIP) Telecom and IT Branch HiPath 4000 V2.0 Headquarters LAN WAN HiPath 4000 HiPath 4000 PSTN SIP HiPath 8000 V1.0 LAN SIP Data Center  Converged Applications(2GIP)  Simplify Management  Minimize WAN Cost  Converge Applications  Reuse / Migrate TDMInvestment  PBX -> Media Gateway Reuse IP InstrumentsCorNet IP -> SIP Combine Benefits of TDM and IP Existing TDM Investment becomes integral part of IP Infrastructure Survivable Media Gateway Third Party PBX IP Digital Migrated HiPath 8000 V10 and V2.0)

23. © Siemens CeBIT 2005 23 Migration steps to HiPath 8000 IP Devices HiPath 4000HiPath 3000 Upgrade to SIP and Registration of devices at HiPath 8000 2 Usage of HiPath 3000/ 4000 as PSTN-Gateway 3 HiPath Applikationen HiPath 8000 Installation HiPath 8000 in the data centre 1 Enterprise IP Network PSTN

24. © Siemens CeBIT 2005 24 HiPath 8000 Landscape SIP Phones /Clients LAN Legacy Phones HiPath 4000 LAN HiPath 8000 IP-IP Border Element SIP Overlay Network Applications & Services Mobile Worker HiPath 8000 V1.0 Real-time IP (SIP) based System Next Generation Networks Data Center SIP Phones /Clients PSTN / ISDN Third Party PBX Home Worker RG 8700 WAN Some items may be available later that V1.0

25. © Siemens CeBIT 2005 25 HiPath 8000 V2.0 Solution Scenario Overview New Solutions 3 rd party phones SIP optiClient 130 PSTN HiPath 8000 SIP Trunking Gateways ISDN SIP OEM Soft Client SIP optiPoint 400/600/410/420 IPUnity Application Server SIP/MGCP HiPath 4000 V3.0 (SMG) SIP-Q ISDN IPUnity Harmony 6000 Media Server SIP/MGCP SIP analog IAD fax LAN/WAN HiPath 8000 V2.0 NMC/SMC RG 8700 (SMG) Attendant Console & CTI Xpressions UM & OpenScape SIP Mediatrix 1400 GW Comdasys Convergence 1600 Applications Endpoints HiPath 2000

26. © Siemens CeBIT 2005 26 CeBIT 2005 - Configuration HiPath 4000 Applications & Services HiPath 8000 HiPath 5000 LAN HiPath 3000 HiPath 2000 Branch Booth 19 Powerful Network (SIP, Cornet IP) LAN Small Office Booth 19 Data Center Booth 16 Headquarter Booth 15 Mobile Worker PSTN

27. © Siemens CeBIT 2005 27 Number of Servers Needed To Scale Enterprise Deployments 46 166 344 Small 15k Medium 50k Large 100k Enterprise Scaling 363 Heavy use scenario LAN Telephony System Hosted Softswitch System Number of Servers Streamlined implementation and maintenance Painless, rapid expansion Easier to upgrade Fewer points of failure LAN Phone System Hosted Softswitch- System

28. © Siemens CeBIT 2005 28 Installation Cost Comparison* *Does not include Unified Messaging Small 15k users Medium 50k users Large 100k users Installation Cost $0.579M $2.009M $4.214M $0.343M $0.813M $1.986M $0.5M $1M $2M $3M $4M +112% +147% +69% Heavy use scenario LAN Telephony System Hosted Softswitch System LAN Phone System Hosted Softswitch- System

29. © Siemens CeBIT 2005 29 1-Year Maintenance Cost Comparison (includes Unified Messaging) Small 15k users Medium 50k users Large 100k users Maintenance Cost $0.579M $2.009M $4.214M $0.343M $0.813M $1.986M $0.5M $1M $2M $3M $4M +96% +76% +65% Heavy use scenario LAN Telephony System Hosted Softswitch System LAN PhoneSystem Hosted Softswitch- System