It is a device capturing and controling all the signals, which are being created by the whole system, especially the made and received phone call signals. The device is mostly used for connecting regular phone system with the Internet and backwards.
Varsatel is a UK based Internet Service Provider. Established for over six years, Varsatel has been providing end-to-end solutions to service providers, Internet telephony service providers, calling card providers, clearing-houses, carriers, mobile carrie
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