GSM VoIP Solutions
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.
A decade ago, call shops were the most convenient way for tourists and immigrants to contact their families. Today however, this has changed, the number of ways getting in touch with their families abroad has increased with the Internet, and currently it is threatening to the survival of the call shops.
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