Legacy and Voice over Packet Switched Networks

1. Customers’ Event Crete, May 2007 Legacy and Voice over Packet Switched Networks Presented by: Amir Karo Associate VP Product Management and BD

2. Agenda • How to provide voice solutions in a “data and voice world” • Pseudowire – Transparent voice over PSN solution • Compressed Voice – Bandwidth optimization solution • VoIP – Standard SIP solutions • Summary - Comparing Pseudowire, Compressed Voice and VoIP

3. Providing Voice Services in a mix,TDM and Packet World • Continue Providing voice on the existing TDM networks • Expensive CapEx and OpEx of TDM networks • Separate access networks • Some TDM equipment is becoming outdated / obsolete • Some Alternatives: • Voice on packet networks - TDM Pseudowires • Compress TDM Voice traffic - Increase capacity, better utilization • VoIP – Standard SIP Solutions

4. Analog Digital ISDN How to Provide Voice Solutions on today’s – Mixed Networks Voice Interface Solutions Network Compression TDM Pseudowire PSN VoIP

5. Agenda • How to provide voice solutions in a “data and voice world” • Pseudowire – Transparent voice over PSN solution • Compressed – Bandwidth optimization solution • VoIP – Standard SIP solutions • Summary - Comparing Pseudowire, Compressed Voice and VoIP

6. Voice over any packet access Technology PBX Fixed Wireless Remote GW n x E1 • Fiber – NG SDH or Metro Ethernet • Fixed Wireless – Where fiber/copper infrastructure is not available • DSL / Cable – IPDSLAM are transforming DSL from ATM to Packet • Fiber GPON – The future of last mile access – Passive Optical Networks Ethernet PBX Remote GW n x E1 Ethernet over Fiber Ethernet PBX Central GW Remote GW n x E1 Ethernet over PDH Ethernet/IP/ MPLS Core Network GbE Ethernet E1 / n x E1 PBX Remote GW Ethernet over Copper n x E1 or C.STM-1 n x E1 Cable HFC Infrastructure Ethernet PBX PSTN Remote GW n x E1 xDSL Ethernet FE / GbE Remote GW n x E1 Ethernet

7. TDM Backhaul/Trunking over Packets Gmux-2000 Gmux-2000 E1 STM-1 Suitable for : • Alternative Carriers, leasing capacity from incumbent • Large enterprises looking to save on leased line costs Main Benefits : • Small foot print with high capacity: 196xE1/T1 for a 6U chassis • Grooming of E1/T1 into lower cost STM-1/OC-3 ports • Under $500 per E1/T1 link – best price/performance E1 STM-1 Ethernet/ MPLS/IP GbE GbE SDH PABX Class 5 Switch

8. IPmux IPmux Leased Line Leased Line / Private Line Building 1 Building 2 Suitable for : • Businesses: Small, medium and enterprises • Alternative carriers looking to increase service offering • Incumbents in migration or outside their network reach Main Benefits: • No need to replace HW • Reduced leased line costs by using a single line for voice and data • Reduced OpEx by using Ethernet vs. TDM network PBX PBX Ethernet/ MPLS/IP LAN LAN

9. Cellular Backhaul over Packet 3G RNC Suitable for : • Cellular service providers who own Packet networks • Telecoms, incumbent and alternative, selling services to cellular service providers Benefits • Provides reliable replacement for cellular backhaul comparable to TDM with jitter and wander conforming to G.823 syn and 16ppb clock accuracy • CapEx savings - Eliminates the need for accurate clock source at every base station E1/T1 C.STM-1 Gmux-2000 Node B IPmux-14/A Ethernet/ MPLS/IP Clock FE GbE 2G BSC E1/T1 196 E1/T1 CH STM-1 BTS

10. TDM and Ethernet Services over Wireless links Remote Sites IPmux-11 Fixed Wireless Central Site ETH Suitable for : • Enterprises looking to save leased line costs in rural environments • Carriers where no Ethernet infrastructure is available Benefits: • Provides both Ethernet and TDM service with no need for land line • Preserves legacy PBX equipment, features and functionalities • Provide QoS by rate limiting LAN application IPmux-14 T1/E1 ETH Server T1/E1 PBX PBX Fixed Wireless IPmux-11 T1/E1 ETH T1/E1 PSTN Internet PBX

11. TDMoIP Product Line Success • TDMoIP Solution deployed in over 80 countries • World leader in TDM Pseudowires: Over 40,000 ports sold • Over 100 customers, telecoms and corporates • Marquee Customers:

12. TDMoIP Success Stories

13. Backhaul TDM Voice over Packet Benefits • Cost efficient backhaul over PSN instead of a leased STM-1 link from the incumbent carrier • OpEx reduction by eliminating local maintenance team (PABX) at remote site • Enables carrier to offer competitive long distance phone service • Offer the end user to get a local prefix phone number Gmux-2000 n x E1 Gmux-2000 Local PSTN Network Eth STM-1 GbE National PSTN Network Cable operator IP Network Voice Switch CIRPACK Local Cable Network Cable GbE STM-1 & n x E1 Cable Modem Analog Phone Cable operator Main Technical Center Paris Residential Cable subscriber Regional Area 1 Regional Area 2

14. Success Story:PSTN Access over DSL, Ventelo Benefits • Offer competitive pricing for PSTN access over Ventelo’s DSL infrastructure • Unified solution for all customers using Ventelo’s own network • Reduce OpEx by elimination leased line from incumbent Customer Services Customer Services DSLAM DSLAM PBX PBX IPmux-11 IPmux-11 LA-110 LA-110 PSN Core SHDSL SHDSL E1 E1 ETH ETH GbE “We can convert TDM PBX traffic for transport over Ventelo’s own high-quality IP network in order to reduce cost, and obtain full end-to end control of the service, while the customer experiences the same high quality and functionality,” TDM TDMoIP Gateway IPmux/Gmux CO/POP

15. Success Story:PSTN Access over Optima, Ukraine PSTN Benefits: • Supports all traditional services and PBX/Voice switches signaling and specialized features • Preserves investment in legacy equipment in migration to PSN • End to End Solution, Carrier grade equipment at the central, redundancy and STM-1 capabilities Remote Voice Switch IPmux-14 4 E1 Up t 7 Gateway to biggest Cities. FE E1’s Remote Voice Switch Gmux-2000 ADM ADM IPmux-14 4 E1 FE DWDM STM-1 GbE SDHSTM-16 Remote Voice Switch IPmux-8/16 16 E1 FE

16. Success Story:Leased Line, Priority Telecom Benefits • Enterprises are able to migrate their Inter site TDM traffic to a packet switched network • Service providers can offer leased line service over PSN • Continued use of existing PBX and legacy data services • Reduce expenses of leased lines E1/T1, voice or data Customer Priority Telecom Priority Telecom Customer PBX PBX Server Server Priority Telecom Fiber Network Router Router

17. Agenda • How to provide voice solutions in a “data and voice world” • Pseudowire – Transparent voice over PSN solution • Compressed Voice – Bandwidth optimization solution • VoIP – Standard SIP solutions • Summary – Comparing Pseudowire, Compressed Voice and VoIP

18. Voice Trunking – the Need • The existing infrastructure has no bandwidth left for expansion: • Saturated SDH network • Fixed wireless • Single access line, such as xDSL • Reducing the required bandwidth bring direct savings: • Inter-city leased lines • International Private Lines • Satellite Connectivity

19. Voice Trunking – Present the Case • Understand the requirements • Retrieve info regarding cost of bandwidth (IPLC, Satellite, etc.) • Punch in the numbers • Let’s look at an example: • IPLC costs $4,000 a month • Compression ratio 10:1 • Each month $36,000 are saved • Payback  Less than 2 months

20. Suitable for: Cellular Operators Benefits: Significant bandwidth reduction (up to 16:1) translates to significant cost savings Transparent to any type of signaling Seamless migration from TDM to IP networks Compact, scalable and simple to deploy Inter MSC Compression Gmux-2000 MSC Vmux-2100 MSC Up to 14xE1’s Compressed 8 x E1 112 x E1s TDM E1 MSC Vmux-2100 8 x E1 E1

21. Suitable for: Corporate Offshore call center providers Benefits: Significant bandwidth reduction (up to 16:1) translates to significant cost savings Simultaneous transmission over TDM and IP networks Transparent to all telephony features Compact, scalable and simple to deploy Offshore Call Centers Site A Remote Call Center PBX or Telephony Switch Media G/W or PBX Vmux-2100 Vmux-2100 E1/ T1s E1/T1 E1/T1 PSTN Remote Call Center FXS Up to 30 FXS Analog Voice Vmux-210 IP Network 10/100BaseT 10/100BaseT 10/100BaseT Data Ethernet LAN

22. Suitable for: Oil/Gas Maritime Construction/Mining Broadcasting Government/Military Military Financial Benefits: Significant bandwidth reduction (up to 16:1) translates to significant cost savings Transparent to all telephony features Compact, scalable and simple to deploy PBX and LAN Extension over Limited BW Links Branch #1 PBX T1/E1 Vmux-110 Branch #2 Headquarters PBX T1/E1 Router Vmux-110 Router Vmux-2100 IP Network xDSL, Cable, PLC T1/E1 PBX Branch #3 FXS Fixed Wireless Analog Voice T1/E1 Vmux-210 ETH PSTN

23. Advantages • TDMoIP multiplexing provides higher bandwidth savings (16:1) than any standard VoIP solution • Full signaling transparency ensuring seamless integration with no retraining costs or lost functionality • Provides bandwidth reduction even without migrating to IP networks • Backup between IP and TDM uplinks with the same bandwidth savings • Single compression cycle end-to-end (Super-Tandem) • Better bandwidth utilization using modem relay technology • Supports bandwidth control mechanisms to better cope with situations of bandwidth overflow

24. Selected Customers

25. Compressed Voice Success Stories

26. Celtel Nigeria – Application Hundreds of Links have been deployed Vmux-2100 Vmux-2100 12 x E1 12 x E1 E1 E1 SDH/PDH Micro Wave E1 E1 MSC/BSC MSC 36xGmux has Installed Already Gmux-2000 Gmux-2000 SDH/PDH Micro Wave STM-1 (with 60 x E1’s) STM-1 (with 60 x E1’s) 5 x E1 5 x E1 Benefits: • Significantly reduce the number of the required leased line between MSC to MSC • Up to 12:1 voice compression ration (for Cellular networks) for higher BW utilization and Opex saving. • Fully redundant carrier class solution (Gmux) • Support direct STM-1 connection to the MSC reduce MSC CAPEX.

27. Benefits: Protocol transparency for PABX Low Cost, Small size Possibility to choose Ethernet or TDM backbone transmission Router Router Atento Spain – International Call Center Call Center 1 - Remote Site Vmux-110 Call Center – Central Site 2 E1 MP-2100 Vmux-210 48 FXO 2 E1 30 FXS Vmux-2100 Vmux-210 18 FXS Router Router E1 2 Mbps Eth Eth PBX International IP Network Call Center 2 - Remote Site Call Center – Central Site 2 Vmux-210 Router Router AVAYA MP-2100 30 FXS 2 Mbps Eth Eth 96 FXO 4 E1 Vmux-2100 Vmux-210 30 FXS Router E1 PBX

28. Agenda • How to provide voice solutions in a “data and voice world” • Pseudowire – Transparent voice over PSN solution • Compressed – Bandwidth optimization solution • VoIP – Standard SIP solutions • Summary – Comparing Pseudowire, Compressed Voice and VoIP

29. VoIP • Main drivers of VoIP • Saving costs • Cheaper Infrastructure • Single infrastructure • Single IT department • Enhanced features • Mobility • Presence • Unified Messaging • Customer details • Everyone’s doing it…. 

30. Understanding SIP: Network Architecture SIP Phone Legacy PBX • SIP (Session Initiation Protocol): Handles the signaling • RTP (Real Time Protocol): Handles the voice • Softswitch = IP-PBX = Call Agent = Gatekeeper SIP Server Softswitch Media Gateway IP Network PSTN Soft Phone Phones

31. Time to Service = 1 Week RAD VoIP System (RVS) Philosophy • It’s all about Operator’s OPEX • Fully integrated components controlled by a single (web based) management system • No need for Telephony + Network + VoIP experts • Easy Telephone-number based access & control [patent] • Invest-As-You-Charge economics • Lowest Initial risk / investment • Smart end-units distribute value (= cost) between center and end-points • Rapid deployment is essential for ROI • ‘Zero’ system integration time • Single plug & play end-unit • Architecture supports Channels / Resellers deployment • Robust Availability-Of-Service & Quality-Of-Service • Full redundancy architecture • P2P bypass on center fault [Patent] • Business-class voice quality assurance by end-unit • RAD VoIP System optimizes TCO • It’s an open SIP VoIP system for other SIP clients

32. Solution Architecture & Layout Customer Premises Back-office Provider’s Site IPVgateCPE PBX Tel Lines (POTS, ISDN, E1) IPVsuite RADview-SC/IPVManagement & Monitoring database LAN ADSL IP Network Smart CPE IPVswitch Class5 SoftSwitch IPVgate Gateway PSTN or Cellular IP Phone or SIP client

33. RAD VoIP System’s Components IPVsuite IPVgate - CPE • Business class CPE (SIP compliant) • Unique multi-layered QoS • Analog-POTS (2 or 4 FXS)/ ISDN BRI (2 or 4 BRIs)+backup/ E1-PRI+backup – Compliant with any PBX • Robust Fax over IP (T.38) • ADSL, VPN and Firewall • Long term investment in unit due to remote features update IPVswitch – Class 5 SoftSwitch • Up to 1,500,000 BHCA (350,000 lines)– Carrier class • Call routing plans • Fallback management • Device & Call authentication • CDR Extraction to billing systems • SIP compliant • Based on Oracle™ database • Cluster redundancy & backup RV-SC/IPV – Provisioning & Management • Central provisioning & management server(CPE configuration stored in Orcale™ database) • User friendly, Web based (provision from anywhere) • Real time Monitoring of CPEs, SoftPhones & any SIP devices • QoS, activity & troubleshooting analysis • “Massive” firmware upgrade (thousand of units in one “click”) • API to customer management systems

34. Agenda • How to provide voice solutions in a “data and voice world” • Pseudowire – Transparent voice over PSN solution • Compressed Voice – Bandwidth optimization solution • VoIP – Standard SIP solutions • Summary - Comparing Pseudowire, Compressed Voice and VoIP

35. Comparing Pseudowire, Compressed Voice and VoIP

36. Summary • RAD has complete voice solution • High capacity, high performance TDM Pseudowire solutions • Best price performance in Compressed Voice Applications over TDM or Packet • Complete voice offering with standard VoIP solutions

37. Thank you for your attention Amir Karo amir_k@rad.com www.rad.com