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.
Shetab phone-to-phone service has been stabilished in 1380 (2001), presenting a pleasant quality in international calls, using VoIP technology via E1 digital lines.Shetab provides various facilities for customers comfort and hospitality, w