Telephone services India

Telephone services developments in India

Prior to-1902 – Cable telegraph.

1902 – First wireless telegraph station established between Sagar Island and Sandhead.
1907 – First Central Battery of telephones introduced in Kanpur.
1913–1914 – First Automatic Exchange installed in Shimla.
1927 – Radio-telegraph system between the UK and India, with Imperial Wireless Chain beam stations at Khadki and Daund. Inaugurated by Lord Irwin on 23 July by exchanging greetings with King George.
1933 – Radiotelephone system inaugurated between the UK and India.
1947 - First Electronics & Telecommunications Engineering department started in India at the Government Engineering College, Jabalpur.
1953 – 12 channel carrier system introduced.
1960 – First subscriber trunk dialling route commissioned between Lucknow and Kanpur.[citation needed]
1975 – First PCM system commissioned between Mumbai City and Andheri telephone exchanges.
1976 – First digital microwave junction.
1979 – First optical fibre system for local junction commissioned at Pune.
1980 – First satellite earth station for domestic communications established at Sikandarabad, U.P..
1983 – First analogue Stored Programme Control exchange for trunk lines commissioned at Mumbai.
1984 – C-DOT established for indigenous development and production of digital exchanges.
1995 – First mobile telephone service started on non-commercial basis on 15 August 1995 in Delhi.
1995 – Internet Introduced in India starting with Laxmi Nagar, Delhi 15 August 1995