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

2. Private GSM Network Office PBX 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 and it is seen that 70% of mobile calls are made while sitting in the office near a landline phone 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. Enterprise/ Corporate - Perspective

5. Advantage - Enterprise & Corporate Mobility voice services - Replaces expensive DECT or Tetra or Cordless telephone. Call routed through the least expensive route by intelligence built into the GSM PBX. Unanswered calls go through an escalation matrix in the company. Could be used as a Presence / attendance recording systems. Mobile phones fully integrated with the enterprise PBX that act as extensions of the office PBX. Generic Advantages : As soon as registered user walks into the area covered by this network, the mobile phone will become an extension of the PBX.

6. Advantage Enterprise & Corporate - contd… “Fixed Mobile converged platform” with dual SIM will offer best of all the worlds. It shall support Analog extensions, VoIP devices, SIP phones, GSM phones & key phones with equal ease Cost effective Mobility voice services replacing expensive DECT or Tetra or Cordless telephones Every call will be routed through the least expensive route by intelligence built into the PBX/ Unanswered calls go through an escalation matrix in the company. New Generation Soft switch with duplicated / redundant / distributed processing can provision seamless PBX functionality across geographically distant multi locations enterprises It would allow a registered user to move across multi location offices with the mobile handset that will work across the network, with the same internal intercom extension number

7. IRIS NGN Platform Network Diagram

8. Telco’s Perspective Business Strategy for the TELCO to Increase market share of Enterprise & Corporate Customers Greater the involvement into the customer network results in Greater inertia for the customer it to move out of the TELCO Bundled PBX solutions could be an innovative strategy to make inroads into Enterprise customers to adopt the private GSM network and maybe even give up the connectivity of other operators A SIM for the Intercom can double the GSM market of the TELCO and their could be potential revenue when the same SIM is out in the macro network TELCO could offer its’ Institutional/ Corporate customers as a bundled package of GSM PBX with SIMs and PRIs’ and the product could be a great model for customer acquisition This would enable the operator not only to make an entry at the Corporate/ Enterprise or Campus wide customers but also pitch other service offerings like Internet Bandwidth, MPLS, etc at a later stage

9. Telco - New Opportunities Sell PRI & E1 based wire-line connectivity to customers. Franchised operations for setting up private GSM network for Group housing societies. Quick roll out like the Group PBX. Enterprise clusters with Private GSM network for large focus client groups like “Loha Mandi” “Ball bearing merchant association” “Panchratna building could be a niche market segment that can be addressed Address requirements of Mobile communication for Defense, Railways, Disaster Management sites, Accident Relief trains, Forests, NSG commando operations & “far off resorts”, “Off shore oil rigs, Mining & drilling sites inter- connected over IP backhaul to “on shore” offices. Sell the concept to Ships as a mobile communication system on “high seas” with satellite backhaul. Roaming facility at ports can be organized.

10. Spin off Benefits for TELCO New concept that will attract enterprises to adopt these “fixed mobile converged” networks & give up connectivity of other operators. This is like “GSM Centrex” bundled up with their private PBX “Frequency reuse” within a macro BTS making it a spectrum efficient architecture for the Telco. Could use this concept to provide scalable, multi-tenant telephony systems hosted on central servers. GSM powered PBX on “pay for use” basis could create a now opportunity for Any Operator. Could be an easier way for garnering bulk customers at a faster rate to meet the roll out obligations and is an innovative solution to enter into the GSM Subscriber base of incumbent operator

11. 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.

12. 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

13. Other Target Markets 13 DISASTER SITES HOSPITALS FACTORIESRURAL NETWORKSSHIPS DEFENCE & RAPID DEPLOYMENT SITES HOUSING COMPLEXES CORPORATES & ENTERPRISES

14. 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

15. 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….