EPABX SYSTEM

Working and realistic example

1. EPABX SYSTEMS By M.Pavan sai 17981A04D1

2. ABSTRACT A private branch exchange (PBX) is a telephone exchange that serves a particular business or office, as opposed to one that a common carrier or telephone company operates for many businesses or for the general public. PBXs are also referred to as: EPABX – electronic private automatic branch exchange PBXs make connections among the internal telephones of a private organization—usually a business—and also connect them to the public switched telephone network (PSTN) via trunk lines. Because they incorporate telephones, fax machines, modems, and more, the general term "extension" is used to refer to any end point on the branch. PBXs are differentiated from "key systems" in that users of key systems manually select their own outgoing lines, while PBXs select the outgoing line automatically. Hybrid systems combine features of both.

3. INTRODUCTION : Electronic Private Automatic Branch Exchange is a shortening that represents EPABX System. It goes under the classification of business telephone frameworks which serve a business environment. Multi-line connections can be made through a solitary telephonic association. It is an office , Restaurant hardware of huge use for telephonic availability with expansions of a solitary telephone line. It tends to be leased from office And Restaurant gear providers as well.

4. FUNCTION OF The EPAbx system

5. Function of the Epabx System : Four main functions of epabx system are: Establishing connections (circuits) between the telephone sets of two users (e.g. mapping a dialed number to a physical phone, ensuring the phone isn't already busy) Maintaining such connections as long as the users require them. Disconnecting those connections as per the user's requirement Providing information for accounting purposes

6. INSTALLATION

7. Installation for pbx Inspect the Premises: Wiring for Extension Lines Programming the PBX Machine

8. Video of pbx system

9. RECORDING FROM Direct Pstm lines Covers all extensions

10. Components of EPABX : External Telco trunks that deliver signals to and from the EPABX. Microcontrollers and microcomputer for arbitrary data processing for control and the logic. Console or switchboard allows the operator to control incoming calls UPS, connecting wiring, cabinets and other housing materials

11. ISDN EPABX System : Integrated Services Digital Network, also known as ISDN, is a type of telephone system that carries both voice and data in digital format (bits) rather than waves.

12. Pictograms and Bottons :

13. Spider EPABX system: Spider EPABX is the latest in telecommunication, based on micro-processor technology, in which the switching matrix is based on CMOS chips providing high reliability and low power consumption Plug-in, modular PCB construction ensures immediate up gradation and repairs

14. Specification’s System Capacity Minimum 8 Lines Maximum 64 Lines Total Trunk Line Resistance 600 Ohms 1500 Ohms Max Dialling Speed 10 pps Speech Paths 7 Links Cabling Method 2 Wire System Input Voltage 220 + - 10% V AC, 50 Hz Power Consumption Less than 50 Watt

15. System Design Requirements : The operating system of EPABX shall be Linux based with hardened to avoid any virus attacks. Guest House EPABX shall have 48 extensions expandable up to 96 extensions. The system shall be equipped with minimum 1 GB RAM and 80 GB HDD. The main & guest house EPABX system shall be provided with back-up power for 8 hrs. Run. Main system shall have the call billing software to get details of calls made by each extension through EPABX and other features. Other required software packages for operating and maintaining the system shall be provided.

16. CONDITIONS : The main EPABX shall be installed in the EPABX room in administration building and EPABX for guest house shall be installed in guest house reception area. Max. ambient temp -- 45°C Min. ambient temp -- 5°C Max. R.H. -- 90% Min R.H. -- 20% Altitude above means sea level -- 1000 mtrs POWER SUPPLY - 415 V + 10%, 3-phase, 4 wire, 50Hz + 3%, effectively earthed.

17. Future Upgrades and Price: Upgradability and the cost of expanding the EPABX system needs to be considered as well. Price is another important factor to consider as India is a very price sensitive market. If you are choosing the cheaper PBX, then it should not compromise on the quality. There are many supplementary costs like wiring, power supply backup, battery, rack, etc. Maintenance costs also need to be taken into account

18. Advantages of EPABX Systems : Sharing of Resources Easy Programming Call transfer Call waiting Conference call Now a days EPABX System offers Alarms,Remainderss for meeting, appointments, Do Not Disturb (DND) etc.

19. DISADVANTAGE OF EPABX SYSTEM : Need careful handling. Installed and fixed at one place. Maintenance cost is high. Required Electricity .

20. APPLICATIONS Shopping mall Schools and universities Call centers Information centre

21. Conclusion EPBAX system is the way people communicate with other very easily but at a fixed place only. Fortunately, new Standards May soon Let us leave the analog world Behind.