Telecommunication, often used in its plural form or abbreviated as telecom, is the transmission of information over a distance using electrical or electronic means, typically through cables, radio …

Sep 5, 2025 · Examples include wired phones, cellphones, microwave communications, fiber optics, satellites, radio and television broadcasting, the internet and telegraphs. A complete, single …

Jan 2, 2026 · telecommunication, science and practice of transmitting information by electromagnetic means. Modern telecommunication centres on the problems involved in transmitting large volumes of …

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This list identifies the largest telecommunications companies by total revenue. For a more thorough list, see the By region section. Note: Numbers of total revenues of most telephone operating companies …

The Department of Telecommunications (DoT) formulates policies and grants licenses for telecommunication services, promoting growth and innovation in India's telecom sector.