The common name shared by communication protocols, technologies and
methods ensuring the transfer of the voice signal via the Internet network or
by any other IP-networks. The signal is transferred by the communication
channel in the digital form and, as a rule, before transferring compresses in
order to remove abundance.
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United States 1294 India 440 United Kingdom 425 Canada 348 Bangladesh 338 China 142 Pakistan 134 Australia 133 Spain 123 Russia 114