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History
The word telephone, from the Greek roots tele, far, and phone, sound, was applied as early as the late 17th century to the string telephone familiar to children and was later used to refer to the megaphone and the speaking tube; but in modern usage it refers solely to electrical devices derived from the inventions of Alexander Graham Bell and others. The U.S. patent granted to Bell in March 1876 for the development of a device to transmit speech sounds over electric wires is often said to be the most valuable ever issued. The gen ....etc

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please send me project report on basic telecom today. ....etc

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On October 1, 2000 the Department of Telecom Operations, Government of India became a corporation and was christened Bharat Sanchar Nigam Limited (BSNL). Today, BSNL is the largest Public Sector Undertaking of India and its responsibilities include improvement of the already impeccable quality of telecom services, expansion of telecom network introduction of new telecom services in all villages and instilling confidence among its customers.

At present the BSNL is the Worldâ„¢s Largest Seventh and Indiaâ„¢s First Te ....etc

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Submitted by:
Akash Verma




B.S.N.L. – An Introduction


Bharat Sanchar Nigam Limited (known as BSNL, India Communications Corporation Limited) is a state-owned telecommunication
company in India.
BSNL is the sixth largest cellular service provider, with over 57.22 million customers as of December 2009 and the largest land line telephone provider in India.
Its headquarters are at Bharat Sanchar Bhawan, Harish Chandra Mathur Lane, Janpath, New Delhi. It has the status of Mini Ratna, a statu ....etc

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job satisfaction project with meaning.
I am aswathy, i want a project model about jobsatisfaction, i want to know about jobsatisfaction, i want a project of jobsatisfaction in bsnl


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Submitted By
ACHARYA MIRAJ SHAILESH BHAI


OVERVIEW OF TELECOMMUNICATION NETWORKS
Introduction
The telephone is a telecommunication device that is used to transmit and receive electronically or digitally encoded speech between two or more people conversing. It is one of the most common household appliances in the world today. Most telephones operate through transmission of electric signals over a complex telephone network which allows almost any phone user to communicate with almost any other user.
Telecomm ....etc

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PCM PRINCIPLES&CAS,CCS#7-TRAINING PROJECT REPORT AT ALTTC GHAZIABAD(BSNL)


Pulse Code Modulation (PCM)
Principles
Analog transmission is not particularly efficient. When the signal-to-noise ratio of an analog signal deteriorates due to attenuation, amplifying the signal also amplifies noise. Digital signals are more easily separated from noise and can be regenerated in their original state. The conversion of analogue signals to digital signals therefore eliminates the problems c ....etc

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BSNL
INTRODUCTION
“BHARAT SANCHAR NIGAM LIMITED” is abbreviated as BSNL. It is fourth largest departement of TeleCommunication Company in Asia and seventh in world today. Which is one of the most earning revenue in India. Above more than 3 laces employees, officer and engineers working in BSNL at present. Previously electro mechanically exchanges for use in India namely Strowger type exchange, cross bar exchange were there. These manual telephone exchanges suffered from s ....etc

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