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.
AN AMERICAN,Uk,CANADA, CARRIER LICENSED BASED BANGLADESHI VOIP WHOLESALE AND DIALER BASED SERVICE PROVIDER.WE PROVIDE A2Z CALL TERMINATION.
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