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.
Reliable and complete service availability, superior quality calls, multiple phones to VoIP service capability, clearer conference calls, ease to use and lowest carrier and whole sale pricing. Reliable and complete service availability, superior quality c
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