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.
SysMaster is a leading vendor of voice, video, and data equipment, serving emerging and traditional telecoms and service providers. The company offers extensive line of Voice-over-IP, IPTV, and Wireless products and solutions which enable service provider
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