1. Stay ahead with RAD Training Presented by: Toby Korall Product Management Vmux Abis, Vmux Trunking

2. Voice Trunking & VoIP for TS2009 Slide 2

3. Voice Trunking & VoIP for TS2009 Slide 3 GSM Abis Optimization - Intro Cost reduction by 2G Abis bandwidth optimization by 50% and more thanks to enhanced silence suppression and data compression BTS PSTN MSC BSC BTS BSC BTS E(PCM) Vmux-2120 / Gmux Interface: Solution: A(PCM) / Ater Vmux-2120 / Gmux / Vmux-4x5 Abis MSC Vmux-4x5

4. Voice Trunking & VoIP for TS2009 Slide 4 Cellular Optimization Market Needs Market Background: 1 Billion potential cellular subscribers in the GSM rural areas Cellular backhaul relies on leased lines, private networks and satellite connections Backhaul costs reach 40-60% of the operators’ OpEx 2.5G / 3G services and mobile users’ increase generate additional network investments (Optimized 2G leased lines can be transferred to 3G networks) -> Connectivity optimization seriously impacts costs reduction.

5. Voice Trunking & VoIP for TS2009 Slide 5 GSM Abis Optimization Where Does it Apply ? GSM operators with expensive leased lines / satellite lines (> $500 / month / E1) GSM operators with a lack of bandwidth Due to lack of GSM infrastructure or Due to 3G service penetration

6. Voice Trunking & VoIP for TS2009 Slide 6 Vmux-445 Central Office MSC BSC E1s Large Remote Site E1 Remote Site E1 Vmux-405 BTS Point-to-Multipoint Value Proposition Cost reduction of 2G Abis bandwidth reduction by 50% and more thanks to enhanced silence suppression and data compression ETH / E1 BTS Vmux-425 E1s A-BIS

7. Voice Trunking & VoIP for TS2009 Slide 7 Satellite Connections Vmux-425 MSC BSC E1s E1 Vmux-405 BTS E1 Business Objectives: Connectivity of GSM BTS over satellite (Abis Optimization) Winning Combinations: ABIS Optimization 1:3 Cost effective Remote Site Vmux-405 BTS E1 Remote Site Central Site

8. Voice Trunking & VoIP for TS2009 Slide 8 Mobile Platforms * To supply optimized GSM services in cruise ships Vmux-405 MSCBSC E1s IP E1 IP Vmux-405 BTS E1

9. Voice Trunking & VoIP for TS2009 Slide 9 Emergency or Supplement GSM Service * To supply service upon temporary outage or during large events * Connection through satellite or microwave Vmux-405 BTS E1 Vmux-405 MSCBSC E1

10. Voice Trunking & VoIP for TS2009 Slide 10 Abis Optimization – Features Up to 3:1 average GSM Abis optimization for E1 traffic over E1 or ETH uplink DTX independent – optimization in non-DTX mode Improved optimization – Smart Packet Drop of non essential voice frames w/o affecting the voice quality and MOS Data Optimization adds ~5%-10% bandwidth savings High precision clock recovery over ETH uplink (no GPS required) Dynamic EDGE Auto timeslot detection for all cellular vendors Reduced end to end delay for data (25 ms) QoS - Signaling, voice and data separation at the uplink – each one could be assigned to a different priority queue FR, EFR, HR, AMR, HR-AMR codec support

11. Voice Trunking & VoIP for TS2009 Slide 11 Smart Packet Drop Performance – GSM Full Rate

12. Voice Trunking & VoIP for TS2009 Slide 12

13. Voice Trunking & VoIP for TS2009 Slide 13 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

14. Voice Trunking & VoIP for TS2009 Slide 14 Inter MSC Trunking Benefits Significant bandwidth reduction (up to 16:1) translates to significant cost savings Full redundancy, including voice cards Flexibility - Transparent to any type of signaling Future proof - Seamless migration from TDM to IP networks Compact, scalable and simple to deploy Target Markets Cellular Operators MSC/BSC STM-1 MSC Gmux-2000 STM-1 TDM/IP Network E1s Gmux-2000 MSC Vmux-2100 E1s E1 Fast Eth GbE

15. Voice Trunking & VoIP for TS2009 Slide 15 Introducing the New MSS Topology This solution enables the operator to avoid 2G MSC forklifts in order to support 3G services Leverage the existing backbone segments while introducing NG-MSC switches Signaling compatible with NG-MSC and softswitches STM-1 Gmux-2000 STM-1 Gmux-2000 MSC MSC/BSC Vmux-2120 E1s MSC Site Remote MSC Site TDM Network Voice Trunking and Media Gateway IP Network TDMoIP MGW NG-MSC VoIP NG-MSC VoIP H.248 + SIGTRAN MSC-S (Softswitch) NG-MSC AMR/IP

16. Voice Trunking & VoIP for TS2009 Slide 16 PBX and LAN Extension over Satellite Target Markets Oil/Gas Maritime Mining/Construction Broadcasting Disaster Recovery 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 Vmux-2100 PBX E1 PRI Vmux-110 E1 PRI Remote/Mobile Platforms Headquarters / Control Center FXS 2-way Radio LAN Cargo Ship Vmux-210 Vmux-110 FXO LAN PBX E&M Phones LAN Vmux-110 E&M LAN Key System E&M Trunking System Broadcasting Van Oil/Gas Platform

17. Voice Trunking & VoIP for TS2009 Slide 17 Voice Trunking Features & Benefits Up to 16:1 voice compression ratio VAD & Silence Suppression 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 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

18. Voice Trunking & VoIP for TS2009 Slide 18 www.rad.com Thank you for your attention