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India's telecommunication network is the second largest in the world by number of telephone users [3] (both fixed and mobile phones) with over 1.19 billion subscribers as of September 2024. [4] It has one of the lowest call tariffs in the world enabled by multiple large-scale telecom operators and the ensuant hyper-competition between them.
Radio telephone communications between England and India were opened in 1933; the Indo-Burma Radio Telephone service started functioning between Madras and Rangoon in 1936; the Burma and Aden telegraph systems, which were a part of the Indian telegraph system, got separated in 1937; deluxe telegrams with foreign countries were introduced in ...
The 'airtel' brand is operated by Bharti Hexacom Limited in Rajasthan and North-East India. Bharti Airtel owns 70% of Bharti Hexacom, while TCIL (Government of India) owns the remaining 30%. [4] Subscriber count and active users include Bharti Hexacom. BSNL Mobile (2000) BSNL 92.26 55.67 4G, 3G, 2G Government of India (100%)
It is unclear when diamonds were first mined in India, although estimated to be at least 5,000 years ago. [227] India remained the world's only source of diamonds until the discovery of diamonds in Brazil in the 18th century. [228] [229] [230] Golconda served as an important centre for diamonds in central India. [231]
The foundation of the telecommunications network in India was laid by the British sometime during the 19th century. During the British era, the first telegraph line was established between Kolkata and Diamond Harbour in 1850. The British East India Company started using the telegraph in 1851 and until 1854 telegraph lines were laid across the ...
In 1986, the history of the Internet in India began with the launch of the Educational Research Network (ERNET), [4] The network was made available only to educational and research communities. [ 5 ] even though the early pre-internet computer networks were operated in India since the late 1970s by the Oil and Natural Gas Corporation and the ...
The electric telephone was invented in the 1870s, based on earlier work with harmonic (multi-signal) telegraphs. The first commercial telephone services were set up in 1878 and 1879 on both sides of the Atlantic in the cities of New Haven, Connecticut in the US and London, England in the UK.
A pager, also known as a beeper or bleeper, [1] is a wireless telecommunications device that receives and displays alphanumeric or voice messages. One-way pagers can only receive messages, while response pagers and two-way pagers can also acknowledge, reply to, and originate messages using an internal transmitter.