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History. Bharat Sanchar Nigam Limited (BSNL) was incorporated on 15th September 2000. It took over the business of providing telecom services and network management from the erstwhile Central Government Departments of Telecom Services (DTS) and Telecom Operations (DTO), with effect from 1 October 2000 on a going concern basis, in early days it was known as CellOne for GSM mobile services ...
Mahanagar Telephone Nigam Limited. Mahanagar Telephone Nigam Limited (abbreviated as MTNL) is a 'Navratna' Category Public sector undertakings in India which is in turn under the ownership of the Department of Telecommunications, Ministry of Communications, Government of India. [6] Headquartered in New Delhi, India.
Bharat Sanchar Nigam Limited (abbreviated as BSNL) is a state-owned telecommunications company, based in India, owned by the Government of India.It operates as a central public sector undertaking with its headquarters in New Delhi, India.
Vodafone Idea or Vi (stylised as V!) is an Indian mobile network operator with its headquarters based in Mumbai and Gandhinagar. [8] [9] It is an all-India integrated GSM operator offering 2G, 3G, 4G, LTE Advanced, VoLTE, and VoWiFi service. [10] As of 31 September 2023, Vi has a subscriber base of 219.8 million, [11] making it third largest ...
Vodafone India (formerly Vodafone Essar, Hutchison Essar) was the Indian subsidiary of UK-based Vodafone Group and was a provider of Telecommunications services in India with its operational head office in Mumbai. As of March 2018, Vodafone India had a market share of 21% [2] and with its merger with Idea, the collective Vodafone Idea ( Vi ...
BSNL Broadband. BSNL Broadband (formerly DataOne) [3] is an Indian wireline broadband operator, a division of Bharat Sanchar Nigam Limited owned by Department of Telecommunications under Ministry of Communications of the Government of India. It provides both wired and wireless broadband services as well as many value-added services.
Overview. Mobile number portability is implemented in varying ways across the globe. The international and European standard implements "recipient-led" porting, in which a customer wishing to port a telephone number contacts the new network (recipient), which sends the number portability request (NPR) to the current network operator (donor).
GSM services. GSM services are a standard collection of applications and features available over the Global System for Mobile Communications (GSM) to mobile phone subscribers all over the world. The GSM standards are defined by the 3GPP collaboration and implemented in hardware and software by equipment manufacturers and mobile phone operators.