Configurations of GSM/VoIP networks allow the service providers to avoid the local Wired Public Switched Network (PSTN) in communication with a GMS mobile handset. As a result, the high rates charged by telephone companies are avoided.
BA WAY es una empresa, de capitales nacionales orientada a brindar a todo tipo de usuario - Corporativo o Residencial - la posibilidad de comunicarse mediante distintos servicios generando una reducci
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