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.
Based in South London, Red Telecommunications is a private limited company offering advanced communication solutions in a rapidly changing environment encompassing both traditional PSTN and new Internet technologies, for both the home and business user, w
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