1. www.coraltele.com “Fixed Mobile Networks” for Rural deployment Coral Air NGX Product is Registered Intellectual Property Rights of Coral Telecom Limited

2. Innovative Product Offering for Rural Markets “Coral NGX” platform is a SIP based switching core, that is tested & tried in hundreds of installations. New Generation Soft switch at the core facilitates duplicated / redundant / distributed processing to maximize network uptime. “Coral Air” is “Coral NGX” switching platform that has MSC / BSC functionality embedded on it. It is a switching platform seamlessly integrated with RAN (BSC - BTS & CR). Ported on a standard robust SBC, to support GSM services Solution is “access agnostic” so it is independent of any connectivity available in the village – PRI / IP / E1. It can also interface on E&M / Magneto / TWT / UHF & IP Low Power Consumption – Can be Powered by small Gen-sets / Solar Panels/ Jeep Battery / Wind Power etc Geographically distant locations could be seamlessly connected over IP backhaul to create a private network across multiple locations. Superpico SDR based Cellular BTS that can support a range of frequencies (800, 900, 1800, 1900 MHZ). Supports redundancy on critical backhaul connectivity and control cards Lightweight & Ruggedized

3. IRIS NGN Platform Network Diagram

4. Micro MSC + BSC + IP NGN IP RAN Interfaces Control/Signaling Interfaces RTP C.R + S.D.R A over IP Coral Air - Network Diagram for Rural Deployment Super Pico Location #1 POTS SIP SIP Phone Extensions PSTN/ MSC RTP Coral IRIS NGX GSM Micro MSC + BSC Legacy PBX Extensions PRI/ E1 Super Pico Location # 2 Super Pico Location # 3 Coral IRIS NGN with Inbuilt Micro MSC + BSC + SDR

6. Socio Economic Differentiator – Rural Market Entrepreneurship opportunities for local youth in setting up & owning small to medium size telecom networks that are complete by themselves. They will have MSC / BSC and BTS capabilities locally providing local switching while traffic outside the network can be backhauled for communication with the world over various types of connectivity's available like PRI / E1 / IP trunk or V sat. Supports Analog extensions, VoIP devices, SIP phones, GSM phones & key phones with equal ease thereby ensuring an environment, where local entrepreneur can service a variety of customer requirements. Land line phones can be provided for specific needs. SIP client loaded on computers or on mobile phones will provide remote extensions outside the physical location as long as (long as) subscriber is connected to the home location over IP connectivity. Supports “in built” pre paid & budget based billing for “Self Sustaining small GSM networks” that can be owned managed & operated by Local village youth. Supports Least cost routing functions for differentiated tariff options. Supports ADSL, Broadband service and also Wi-Fi carpeting for a cluster of villages that can be provisioned for setting up of “Call centers & BPO operations” in the villages. Entrepreneur will promote the usage with local applications to maximize billing. As they earn more, they will start e-governance services & will set up “call centers”. Village Infrastructure creation and local empowerment Job creation for people who would work with entrepreneurs Higher level of social inclusion : Village entrepreneurs will own networks and feeling of empowerment and greater level of social inclusion in the money making business of ICT.

7. Public Private Network - Seamless Working 1.These rural networks will work as “private network”, but It is possible to integrate these rural networks for seamlessness of call maturity by provisioning of a separate numbering plan with a telecom operator operating in the nearby area that has global roaming agreements. When subscriber is inside the village, he is in “private network” and he roams in the rest of the world where the subscriber is identified by a unique number that the partner Telco will provision 2.Seamless movement of Subscriber “on call” in the macro network into the private network 3.Seamless movement of Intercom MS into macro network 4.Multiple adjacent villages can be seamlessly Interconnected.

8. Coral Air BTS - Advantages 1.Converged Unified Solution with GSM-Landline- IP convergence. Standard product can be deployed on all situations or can be adapted for all future requirements. 2.Quick deployment in disaster sites & easy setting up of communication network. 3.Eliminates Use of separate handset for mobile extension 4.All mobile phones become extensions of the same system which enables undisturbed communication through out irrespective of nature of connectivity tool 5.Creates LCR for cost reduction.

9. Soft switch with in-skin Mobile switching center (MSC) & base station controller (BSC). Versatile software defined radio (SDR) based Radio Access Network (RAN). Private HLR records. Super-pico SDR based Cellular BTS that can support a range of frequencies 800, 900, 1800, 1900 MHz (700 MHZ and 2100 MHZ on road map) GSM support (GPRS & EDGE on roadmap). Interfaces MGCP / MAGACO / SIP / E1/ PRI / V5.2 / UHF / VHF / V-Sat Capacity 50 Trx Salient Features

10. Other Target Markets 10 DISASTER SITES HOSPITALS FACTORIESRURAL NETWORKSSHIPS DEFENCE & RAPID DEPLOYMENT SITES HOUSING COMPLEXES CORPORATES & ENTERPRISES

11. Sl. No. ParameterSpecification 1Frequency Bands850 Mhz, 900 Mhz, 1800 Mhz, 1900 Mhz (700 Mhz and 2100 Mhz on road map) 2Input Power48 Volt DC or + 24 V DC. 30 Watts per Trx 3Output RF Power1 watt per carrier at antenna port 4BackhaulIP over Ethernet or E1/ T1 5Coral Air InterfacesAntenna ports: 50 Ohm N female GSM – BTS to BSC: GSM A-bis over IP 6Supported StandardsGSM (3GPP Release 99) (GPRS/ EDGE on roadmap) 7Receiver Sensitivity (W/o diversity) GSM: -108 dBm/ 8Capacity IRIS NGN MSCSupports 50 Trx 9Operating Temperature-40 to + 50 degrees C 10Storage Temperature-40 to + 85 degrees C 11Operating Relative Humidity5 to 95 % non-condensing 12RegulatoryDesigned to meet 3 GPP & IP66 13Coral Air IRIS NGN Interfaces supported E1/ PRI/ E&M/ Magneto/ IP/ SIP/ MGCP/ MAGACO/ I- SUB/ Quad Cables/ CNR Technical Specifications

12. For more details visit: www.coraltele.com or Email: mahapatra@coraltele.com © Copyright 2011 CORAL TELECOM LIMITED The information provided in this document is not intended for use by or distribution to any person in any jurisdiction where such use or distribution would be contrary to the law or regulation or would subject Coral Telecom Limited or its third party agents to any regulatory requirements within such jurisdiction. You are required to satisfy yourself that you are not subject to any local requirement which restricts or prohibits you from using or distributing the information provided in this document. THANK YOU….