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.
Active Communications is the result of individual efforts summed up only to be at your service. Starting with presentation catalogs, network and data base administration and up to the most advance philosophies of management, Active Communications resolves
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