Question

Explain International Subscriber Dialling Telephone Service (ISD)

Answer 1

Hello friend

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In 1972, Overseas Communication Service was established in Mumbai for the Management of International telecommunication service.

In 1976,the International Subscriber Dialled Telephone Service was started to connect Mumbai and London directly on phone.

Alongside the phone service,services like telex,teleprinter and radio images were started.In 1986,Videsh Sanchar Nigam Limited (VSNL) took a big leap in this fiel.


Before that,Mahanagar Telephone Nigam Limited (MTNL) was a public sector company for giving telephone service in big cities.


In the 1990s,Videsh Sanchar Nigam Limited held the distinction of being the main internet service provider in India. The contribution of Sam Pitroda in this field is significant.


I hope this will helps you....


Thanks...


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