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.
Wuchuan Network Technology Co., Ltd. is set up in 2002 which is a leading high-tech enterprise in IP Communications in China, Wuchuan provides the professional VOIP solutions for the enterprises, provides the softswitch and equipments for VOIP telecom car
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