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.
Infostructure - Small Business Phone Systems
InfoStructure – Business VOIP providers, small business phone system, virtual phone system, hosted PBX, VoIP & Internet, and other business telecommunication services.
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