1. The Vmux Voice Trunking Family

2. Vmux Trunking Slide 2 Agenda Introduction Applications Products & Features Management Summary

3. Vmux Trunking Slide 3 Voice Trunking The Vmux voice trunking family: Enables up to 16:1 compression of E1/T1, and analog lines Transmits the traffic over a single E1/T1, Serial, or IP link n x E1/T1 PBX/ Switch n x E1/T1 PBX/ Switch CVS TDM, IP, SDH, Satellite, Wireless… While … Maintaining high voice quality Supporting any type of signaling Without … Affecting current investments in infrastructure Compromising Fax, Modem or telephony features

4. Vmux Trunking Slide 4 Carrier Applications

5. Vmux Trunking Slide 5 Application #1: Inter MSC Trunking Target Markets 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 MSC/BSC STM-1 MSC Gmux-2000 STM-1 TDM/IP Network E1s GbE Gmux-2000 MSC Vmux-2100 E1s E1 FE GbE

6. Vmux Trunking Slide 6 Telephony Switch T1/E1 T1/E1 Leased Line Vmux Up to 16 x T1 T1/E1 Router Up to 16 x T1 PSTN Vmux Up to 16 x E1 Telephony Switch Vmux PSTN Telephony Switch Up to 16 x T1 PSTN Telephony Switch Up to 16 x E1 PSTN Router IP Network Application #2: National/Int’l Long Distance Target Markets Wholesale carriers International carriers Long distance carriers International call providers Benefits Significant bandwidth reduction (up to 16:1) translates to significant cost savings Transparent to all telephony features Compact, scalable and simple to deploy

7. Vmux Trunking Slide 7 Application #3: PRI Leased Line Replacement PRI IP ETH Site 1 Site 112 Vmux-110 PSTN POP GE 112x E1s Gmux-2000 PBX Class 5 xDSL Target Markets Alternative Carriers ISPs Benefits Ability to provide a full PRI over ADSL links with less than 300kbps uplinks Transparent to all telephony features Compact, scalable and simple to deploy

8. Vmux Trunking Slide 8 Enterprise Applications

9. Vmux Trunking Slide 9 Application #4: Offshore Call Centers Target Markets Offshore call center outsourcers Offshore call centers communication 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 Remote Call Center Site A Vmux-2100 Remote Call Center Vmux-2100 E1/ T1s E1/T1 10/100BaseT Vmux-210 Ethernet LAN 10/100BaseT Analog Voice Up to 30 FXS FXS Data IP Network PBX or Telephony Switch PSTN E1/T1 10/100BaseT Media G/W or PBX

10. Vmux Trunking Slide 10 Application #5: PBX and LAN Extension over Limited Bandwidth Infrastructure Target Markets Oil/Gas Maritime Mining Construction Government Military Benefits Significant bandwidth reduction (up to 16:1) translates to significant cost savings Transparent to all telephony features Compact, scalable and simple to deploy Headquarters T1/E1 PBX Vmux-110 Branch #1 T1/E1 PBX Vmux-110 Branch #2 ETH IP Network Vmux-210 Branch #3 Fixed Wireless xDSL, Cable, PLC Router Vmux-2100 PSTN PBX T1/E1 Analog Voice FXS

11. Vmux Trunking Slide 11 Mobile Contact Center with Media Gateway or PBX T1/E1 Media G/W or PBX T1/E1s ISDN PRI Vmux-2100 T1/E1 T1/E1s ISDN PRI Vmux-2100 PSTN HQ Application #6: Disaster Recovery or Event Coverage Target Markets Disaster recovery solution providers Mobile contact center providers Broadcasting Benefits Significant bandwidth reduction (up to 16:1) translates to significant cost savings Transparent to all telephony features Compact, scalable and simple to deploy

12. Vmux Trunking Slide 12 Application #7: ARD/PLAR and HOOT & HOLLER over IP/MPLS Target Markets Financial News/Weather Agencies Transportation/Utilities Benefits Maximize capacity of organization’s network Applicable solution over TDM networks as well No forklift upgrades required Supports a variety of analog/digital interfaces Can operate with or without signaling Compact, scalable and simple to deploy Central Site Remote Branches or Customer Sites Vmux-2100 Trading System Ethernet T1/E1 Vmux-110 FXS (PLAR) Vmux-110 E&M (Hoot) Ethernet Vmux-110 FXS (PLAR) IP/MPLS Network Ethernet Vmux-110 FXS (PLAR)

13. Vmux Trunking Slide 13 Products

14. Vmux Trunking Slide 14 Voice Trunking Product Line ProductVoice Service Network Links Additional Services Vmux-2100 1U (H) 19” (W) Up to 16x E1/T1/PRI 10/100BaseT E1/T1 Serial PS Redundancy IP-TDM Backup Super-Tandem Vmux-110 1U (H) 9.5” (W) 4 FXS/FXO/E&M 8 FXS/FXO/E&M 1 E1/T1/PRI 10/100BaseT E1/T1 Serial Ethernet Switching Internal Router Vmux-210 1U (H) 19” (W) 12/15/24/30x FXS 10/100BaseT E1/T1 Serial Ethernet Switching Internal Router Gmux-2000 6U (H) 19” (W) 112 x E1 2 x STM-1 E1 STM-1 GBE PS Redundancy CL Redundancy STM-1 Red. GBE line Red. New

15. Vmux Trunking Slide 15 Vmux-2100 Uplink: Enables up to 16 E1 or T1 links to be extended over a single E1, T1, serial or IP link Main link supporting E1/T1, IP or Serial interface Channelized 2 or 4 E1/T1 modules User ports: Four slots for Voice modules with 2 or 4 E1/T1 ports each Power: Two redundant, hot swappable AC/DC power supplies Uniquely High density: up to 16 E1s/T1s in 1U Voice ModulesChannelized ModulesMain ModulePower Supplies

16. Vmux Trunking Slide 16 Vmux-110 User LAN portUplink to IP NetworkSerial UplinkFractional Voice E1 E1 uplink Uplink: Serial, E1/T1 or 10/100BaseT uplink User Ports: 1 E1/T1 digital voice port or 4/8 FXS/FXO/E&M analog voice ports 1 User Ethernet port (with priority & rate limiting) Power: Internal AC/DC

17. Vmux Trunking Slide 17 Vmux-210 Uplink: Serial, E1/T1 or 10/100BaseT uplink User Ports: Connects up to 12/15/24/30 FXS analog voice ports 1 User Ethernet port (with priority & rate limiting) Power: Internal AC/DC

18. Vmux Trunking Slide 18 Gmux-2000 – Central Office Voice Trunking Gateway - Introduction Carrier-class central site solution for Vmux voice trunking gateways Compresses up to 112 E1s or 96 VC-12s over a GBE/STM-1/E1 network connection Modular solution – each card equivalent to a Vmux-2100 3 redundant load sharing power-supplies 2 redundant management cards (CL) 2 redundant STM-1 cards 6U high chassis suitable for ETSI or ANSI installations Smallest footprint solution in the market Lowest cost solution in the market

19. Vmux Trunking Slide 19 Gmux-2000 voice compression module - features 16 External E1s (Telco Connector) Server card architecture 2 E1 uplinks: Redundant or P-T-MP Interoperable with all Vmux voice trunking gateways (Vmux- 2100, Vmux-110, Vmux-210) Full support of Vmux voice trunking features, including: Voice compression codecs Silence suppression Echo cancellation HDLC/SS7 optimization Fax/Modem relay Super-Tandem Bandwidth Control New

20. Vmux Trunking Slide 20 Gmux-2000 Module View 2 Slots for CONTROL Modules System Slots I/O SlotsFan Tray 5 Slots for VMX E1/T1 GbETH STM-1 VMX E1/T1 GbETH STM-1 VMX E1/T1 Power Inlet (PI) Module 3 Slots for PS Modules

21. Vmux Trunking Slide 21 Features & Benefits

22. Vmux Trunking Slide 22 Features & Benefits Up to 16:1 voice compression ratio VAD & Silence Supression Equipped with both TDM & IP uplinks Supports any type of signaling including CAS and CCS Transparent to all telephony features including: fax, modem, CLIP, IVR, MFC, etc. Compact, Scalable and Simple to deploy asaf_w: Do not read out these features. Instead transfer the following messages: 1.Maximum bandwidth reduction 2.Legacy services unaffected asaf_w: Do not read out these features. Instead transfer the following messages: 1.Maximum bandwidth reduction 2.Legacy services unaffected Maximum reduction of voice transmission costs No bandwidth consumed when channels are idle Seamless migration from today’s TDM networks to tomorrow’s IP networks NO compromise of existing telephony features and NO retraining of staff Minimizes Initial Investment & Collocation Costs

23. Vmux Trunking Slide 23 Advantages over standard VoIP Solutions (for trunking applications ) 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. Vmux Trunking Slide 24 Bandwidth Considerations User configurable parameters: Voice codec used (between 5.3k & 64k) Packet size (tradeoff between bandwidth & delay) Packet type (AAL2oMPLS header - smaller than TDMoIP - for TDM networks only) Application dependant parameters: Number of compressed voice channels in a single bundle (The more channels, the less header overhead) Actual silence percentage (typically – 50% in fixed line networks, 35% in cellular networks) Easy to use calculator for case-by-case estimation of compression ratio

25. Vmux Trunking Slide 25 Management Options Management options: ASCII Terminal Telnet * SNMP * RADview-SC/Vmux * * - In band or Out of band Benefits of RADview-SC/Vmux: Network topology view Real-time status update End-to-end circuit provisioning Enhanced performance monitoring User-friendly GUI Vmux E1/T1 NMS Ethernet Switch/ Router IP Switch/Router TDM

26. Vmux Trunking Slide 26 RADview Service Center Vmux Configuration Configuration of all managed elements End-to-end circuit provisioning Remote download of software and configuration files Performance Performance counters Bandwidth Measurement 24-hr graph display Fault Event log based on SNMP Traps Filtering/forwarding of events Real-time update of status based on polling/events Enhanced diagnostic capabilities including loopback tests End-to-end circuit monitoring

27. Vmux Trunking Slide 27 Summary Excellent compression ratio Compact and easily installed Protects investment in infrastructure & legacy equipment Wide range of applications Wide installation base RAD’s Vmux Trunking Solutions: INCREASING Bandwidth Efficiency REDUCING costs UNRIVALED quick payback

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