CHAPTER ONE

1.0       INTRODUCTION

1. STATEMENT OF THE PROBLEM

At the early stages, each subscriber was directly linked to the other within the communication system but as the telephone service grew, the network became complex and economically disadvantageous to implement. The next move was to contractive all subscriber line within the network. An operator at he central point, manually links a subscriber to the line he wants to communicate with. This system is called the manual exchange system. To be able to communicate here, a subscriber must first of all call the operator and tell him the particular line he wants to communicate with.

The problems the researcher faced was not only how to indicate to the exchange the number of the subscriber to be called automatically. The subscriber may also face the problem of not meeting the operator on seat to link him to the called subscriber. There is also the problem of engagement, and as a result, the subscriber would not be able to contact his colleague as previously experienced by NITEL operators.

1. AIMS AND OBJECTIVES

This project work is aimed at enabling subscribers to link one another automatically without the direct involvement of an operator and this would drastically reduce the problem of engagement an nonchalant attitude of some operators.

1. PURPOSE OF THE STUDY

The purpose of this study, is enormous, but the researcher concentrates on the designing of an automatic telephone  exchange to replace that of manual dialing system which is characterized by inefficiency, fraud, and errors in messages, hence making NITEL more efficient in its operations.

1. SIGNIFICANCE OF THE STUDY

1. Its advantages has led to the operational efficiency of organizations like NITEL that acquired it.
2. It makes retrieval of information about dialing called subscriber.
3. It replaces the manual way of keeping information on paper.
4. Timeliness in collecting information
5. It has greater efficiency
6. Organizational simplification
7. It improve the telephone data base
8. It reduces the burden on information providers
   1. SCOPE/DELIMITATION

This system is not restricted to a particular number of users as far as one is able to afford a telephone, he or she is liable to use the system.

1. DEFINITION OF TERMS

Automatic: This refers to self acting. Able to work or be worked without human intervention

Computer: A computer is a device that works under the control of stored programs, automatically accepting, storing and processing data to produce information that is the result of that processing.

Telephone: A system of transmitting the human voice by electric current, usually through wires supported by poles.

Dialers: A telephone dialer is a device that enable one to dial telephone numbers to link the subscriber to the intended party.

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