1. Coral Telecom Ltd. 1 SBDX PRI

2. Coral Telecom Ltd.- Profile A Team of technocrats with a focus on developing telecom technologies, 15% of annual turnover earmarked for R & D DSIR recognised R&D center at Noida, India. ISO 9001:2008 certified by DNV. National footprint with 14 branches across India Two international offices - Dubai & Jo’burg 150 dedicated resellers

3. Coral Telecom Ltd. – Profile…. Specific focus on Defence Market – customisation to meet the unique requirements Team of ex-Army officers/defence personnel to understand and meet the requirements of the defence. Large deployments in critical installations of the Govt. of India – ISRO, Western Naval Command, Prestigious Gorchakov Project of the Indian Navy, Assam Rifles, CRPF, Indian Army, Indian Railways Strategic alliance with BSNL & MTNL for rental & revenue share model A completely indigenous effort with total control on technology elements- Hardware & Software Products lines include Switching, Transmission and Wireless equipments with a focus on IP.

4. Coral Telecom Ltd. 4 Introduction Lighter & Compact version of DX PLUS Cards structure 8 port same as DX Port capacity- 8 Analog Ext & One PRI on Board & 4 Additional Slots Built-in Tone card Built-in Unlimited Conference PRI card can be defined only as slave Built –in Modem port (remote configuration)

5. Coral Telecom Ltd. 5 Various Cards SBDX-PRI supports following cards: ALC card BRI card PRI on boardDDVT card VSN cardATD card DLC cardGSM/CDMA card DTD cardTEC card ATC card

6. Does not Support Voice Mail PCB KTS baby PCB Printer Port Sensor Port Action Port Coral Telecom Ltd. 6

7. 7 CPU SECTION Built around a 8 Bit AM188 at 32 MHz Switching TDM/PCM Architecture: fully non blocking Interfaces: Two serial RS232 for Configuration & CTI applications Real Time Clock ROM128 K byte, RAM 256K byte, FLASH 384K byte. Unlimited DTMF Dialer for CLI generation & DTMF dialer Inbuilt Internal Hold On Music & provision to connect/play the External Hold On Music. Software version can update in field

8. Coral Telecom Ltd. 8 PSU SECTION Inbuilt Power Supply Universal input voltage i.e.230V ranges 180V to 260V AC. Two outputs are: Line voltage 24V dc and ringer 65Vrms, 20HZ AC Main O/P voltage 28Vdc & 2 A supply. Maximum power delivered is 50 Watts Battery backup voltage 27V at max current 300mA Battery Low cut-off voltage by relay at 19.5V. LED indication for mains / battery. Supply will have 1500V isolation for input section. Three pin power connector for taking out line voltage and ringer. Two pin connector for battery.

9. Coral Telecom Ltd. 9 CTI Applications… Billing S/W Third Party Voice Mail Active Dialer – In process Coral AMS – In process

10. SBDX-PRI COMPARISON with DX PLUS

11. Coral Telecom Ltd. 11

12. Thanks any queries mail to pradnyil@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.