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.
XTelSonic LLC,s parent company AIM SYSTEMS, a Connecticut-based Telecom Solution provider, is one of the first companies in the nation since 1998 to provide next-generation integrated voice, data and PBX services over IP.
XTelSonic LLC started as a n