1. www.coraltele.com Private GSM/ Mobile Network Product is Registered Intellectual Property Rights of Coral Telecom Limited

2. Private GSM/Mobile Network Private GSM networks with full feature functionality on GSM mobiles just like any PBX extensions Cost effective & Rapid deployment of GSM services Access Agnostic: Completely integrated with legacy connectivity's like E1 / PRI / E&M / Magneto / TWT / UHF / VHF & IP Subscriber end supports Analog extensions, VoIP devices, SIP phones, GSM phones & key phones with equal ease thereby ensuring an environment with best of all the worlds. New Generation Soft switch at the core facilitates duplicated / redundant / distributed processing. Geographically distant locations could be seamlessly connected over IP backhaul to create a private network across multiple locations of an enterprise.

3. Unique Selling Proposition Operator’s perspective: New concept that can attract Enterprises to adopt an Operator’s GSM network which would be like a “GSM Centrex” bundled up with the Enterprises’ private PBX. “Frequency reuse” within a macro BTS thereby making it a spectrum efficient architecture for the Operator. Capture the captive market with Defense, Railways, Disaster Management sites, Accident relief trains, Forests, NSG commando operations & far off resorts. UHF VHF & private networks could provide the backhaul in case of a remote site. Off shore oil rigs, Mining & drilling sites inter-connected over IP backhaul to “on shore” offices. Franchised operations for setting up private GSM network for Group housing societies. It may facilitate quick roll out like the Group PBX scheme. Enterprise clusters could be large focus client groups like “Loha Mandi”, “Ball bearing merchant association”, “Panchratna building with gold merchants”, etc. Sell the concept to the Ships as a mobile communication system on “high seas” with satellite backhaul. Roaming facility at ports can be organized. SDR based BTS can auto adjust to free frequency band. This could be a large market.

4. Cell phones are the preferred mode of communication which has the following adverse implications on cost & expenditure Organization’s don’t get the best out of bulk rates negotiated for the PRI lines. Free “Intra office communication” on intercoms, ends up in being a paid call. Free Inter branch communication on dedicated leased lines ends up as paid call. VoIP tariff plans / infrastructure if available in the company is bypassed Standard features of PBX - call transfer / Call hold / Call consult / Conference are paid. Enterprise wide “UMS”, IVR & Voice mail services for staff efficiency are missed out. Call escalation process within the organization will be by-passed. Call center services not supported on mobile phone calls. Why Fixed Mobile Convergence ??

5. “Coral Air – NGX” - IP based Fixed Mobile Communication Platform 1. Attendance recording systems. 2. Mobility voice services - Replace expensive DECT or Tetra or Cordless telephone. 3. Call routed through the least expensive route by intelligence built into the PBX. 4. Unanswered calls go through an escalation matrix in the company. Mobile phones fully integrated with the Enterprise PBX can reduce costs If an Organization is using “Coral Air – NGX” solution, then as soon as an employee walks into the area covered by this network, registered mobile phones will become an extension of the PBX in a simple, secured, automatic process without the need for any complicated password, access code or manual registration.

6. IRIS NGN Platform Network Diagram

7. Product Application

9. Rapid GSM Network for Disaster & Paramilitary deployments with private backhaul. Product Application

10. “Offshore Drilling Rigs” Communication over Private Links / V-Sat Disaster Management/ Rapid Deployment “In Building Solution” Spectrum Re-use Product Application

11. Accident Relief Train with GSM BTS & Wi Fi BTS solution GSM BTS GSM Mobile phone Quad Weigh bridge Product Application

12. GSM network in Accident Relief Train uplink to Mux, Quad cable, Wayside telephone IPMUX E&M IP Camera POTS Telephones E&M Telephones WiFi Access Point VoIP Phones Laptop Walkie Talkie IP Link (Ethernet) Product Application

13. Coral Air NGX - 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.

14. The Seamless Network 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. Superpico 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

15. Other Target Markets 15 DISASTER SITES HOSPITALS FACTORIESRURAL NETWORKSSHIPS DEFENCE & RAPID DEPLOYMENT SITES HOUSING COMPLEXES CORPORATES & ENTERPRISES

16. 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

17. 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….