Telecommunication is communication at a distance using electrical signals or electromagnetic waves. The first commercial telegraph was constructed in the 1830s, and the first commercial telephone services began in the late 1870s. Today, India has the second largest wireless network in the world with over 900 million subscribers. While the wireless segment dominates the telecom market, both private companies and state-run BSNL play major roles.

2.  It is communication at a distance by technological
means, particularly through electrical signals or
electromagnetic waves.
 In 1792 Claude Chappe first fixed semaphore line
between Lille and Paris.
 The 1st commercial electrical telegraph was
constructed by Sir Charles Wheatstone and sir
William Fothergill Cooke

3. Replica of one of Chappe’s Semaphore tower

4.  Alexander Graham Bell and Gardiner Greene
Hubbard created first telephone company Bell
telephone company of US.
 Later evolved into American Telephone &
Telegraph.
 First commercial telephone services set up in 1878 in
the cities New Haven, Connecticut, and London ,
England.

5.  Point to point communication-
Telecommunication over Telephone lines
 Broadcast Communication-
Telecommunication through Radio Broadcasts
 Multiplex system-
Telecommunications in which multiple transmitters
and multiple receivers.

6. top 15 telecom companies in world

7.  India has surpassed US to become 2nd largest
wireless network in the world with the
subscriber base of over 900 million.
 India’s telephone subscriber base expanded
224 million in 2007 to 898 million in 2013.
 India's telecom sector’s revenue is USD 64
billion FY12.

8.  The wireless segment dominates the market.
 Remaining share is with wire line segment.
 Urban region account for 61.1 % of telecom
subscriptions while rural areas constitute the
39.9% subscription.

9. composition of telephone
subscriber 2013

10.  The no. of internet subscribers increased from 8.6
million from 2006 to 56.5 million in 2013.
 By 2015 this figure will grow to 117.1 million
subscribers.
 Total internet service providers revenue stood at 12.2
billion USD in 2013.

11.  Wireless segment – Bharti Airtel
21.7% of total subscription which is around 189 million
subscribers
 Fixed line Segment – BSNL
67.7% of total subscription which is around 20 million
subscribers
 Broadband Internet – BSNL which is 66% of total
broadband market which is around 7.7 million
subscribers.

13. Company Ownership
Bharat sanchar nigam
Ltd. (BSNL)
Government (100%)
Bharti Airtel Bharti group (47.7%),
LIC India (4.3%) , Pastel
Ltd (15.57%)