1. RadioRing TM ISO 9002 Proprietary and Confidential - RadioTel Ltd. 1 RONY LEVY CEO & PRESIDENT RadioTel Wireless Communication

2. RadioRing TM ISO 9002 Proprietary and Confidential - RadioTel Ltd. Optimizing Network Performance Optimization is applied at two levels: Optimization at Network Element level (box solution). Optimization at Network level (Network solution) 2

3. RadioRing TM ISO 9002 Proprietary and Confidential - RadioTel Ltd. Optimizing Network Performance Network Element’s parameters (box solution) Spectrum Efficiency Dynamic and Flexible capacity (bandwidth) Cross-connect, Switching & routing functionality Mixed traffic circuit switched & packet 3

4. RadioRing TM ISO 9002 Proprietary and Confidential - RadioTel Ltd. Spectrum Efficiency Configurable modulation: QPSK up to QAM256 (or other modulation techniques i.e.: TCM, OFDM) via management station or automatic sensing Results: Improvement in spectrum efficiency: 2bits/Hz up to 8 bits/Hz 4

5. RadioRing TM ISO 9002 Proprietary and Confidential - RadioTel Ltd. Configurable Modulation 5 QAM256QAM128 QAM64 QAM16 QPSK

6. RadioRing TM ISO 9002 Proprietary and Confidential - RadioTel Ltd. Dynamic & flexible capacity Flexible and configurable capacity of the element through the management station. Mixed circuit switched & packet traffic in wireless constraint’s network requires dynamic sensing of overflow traffic. 6

7. RadioRing TM ISO 9002 Proprietary and Confidential - RadioTel Ltd. Flexible Capacity 7 4 x E1/T1 8 x E1/T1 16 x E1/T1 21 x E1/T1 STM-1/OC-3

8. RadioRing TM ISO 9002 Proprietary and Confidential - RadioTel Ltd. Dynamic Bandwidth allocation voice & data 8

9. RadioRing TM ISO 9002 Proprietary and Confidential - RadioTel Ltd. Basic blocks: Cross connect, Switch, Router, Mixed traffic 9 Low order traffic ADM 4/3/2/1 matrix 10/100BT ports Ethernet Switch 10/100BT ports IP Router Mixed traffic Voice & data Cross Connect

10. RadioRing TM ISO 9002 Proprietary and Confidential - RadioTel Ltd. ADM (XC4/3/21/), Switching & routing functionality Mixed traffic voice and data. ADM- The means to provide cost effective access to a portion of the traffic that passes through the node Cross Connect matrix 4/3/2/1 Layer 2 - Ethernet switch, VLAN capability. Layer 3 - routing functionality. Mixed traffic voice and data 10

11. RadioRing TM ISO 9002 Proprietary and Confidential - RadioTel Ltd. Optimizing Network Performance Network’s parameters (Network solution): Network Solution Channel’s dynamic bandwidth Virtual Network (VPN) 11

12. RadioRing TM ISO 9002 Proprietary and Confidential - RadioTel Ltd. Dynamic and configurable Hardware 12 ADM Cross connect Management Layer 1 ADM Cross connect ADM Cross connect ADM Cross connect

13. RadioRing TM ISO 9002 Proprietary and Confidential - RadioTel Ltd. Dynamic and configurable Hardware 13 Ethernet Switch Management Layer 2

14. RadioRing TM ISO 9002 Proprietary and Confidential - RadioTel Ltd. Dynamic and configurable Hardware 14 Router Management Layer 3 Router

15. RadioRing TM ISO 9002 Proprietary and Confidential - RadioTel Ltd. Channel’s dynamic bandwidth 15 Dynamic bandwidth Adaptation to channel’s performance Control protocol embedded in the traffic 1 10 5 Received Signal

16. RadioRing TM ISO 9002 Proprietary and Confidential - RadioTel Ltd. 16 Virtual Network in the Metropolitan network Metropolitan Network 10/100BT & E1/T1 10 / 100BT ports Enterprise A Site 1 Enterprise A Site 2 10 / 100BT ports VLAN functionality Virtual network Mixed traffic voice & data

17. RadioRing TM ISO 9002 Proprietary and Confidential - RadioTel Ltd. 17 RONY LEVY CEO & PRESIDENT RadioTel rony@radiotel.co.il www.radiotel.co.il