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Additional
International call
English Wikipedia - The Free Encyclopedia
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International call
International telephone calls
are those made between different countries. These
telephone calls
are processed by
international gateway exchanges
(switches). Charges for these calls were high initially but declined greatly during the 20th century due to advances in technology and
liberalization
. Originally they were placed via
long-distance operators
. The calls were transmitted by cable,
communications satellite
, radio, and more recently, fiber optics and
Voice over Internet Protocol
(VoIP).
International Direct Dialling
was introduced in the 1970s, so calls can be dialed by
country code
without an operator.
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