Graham Bell Birth Anniversary: The Evolution of Telephones in India
The evolution of telephones in India took nearly 20 years. They first came to India in the form of rotary phones which consisted of a dial and a receiver.
from Top Tech News- News18.com https://ift.tt/ow6kMEP
from Top Tech News- News18.com https://ift.tt/ow6kMEP
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