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.
Grandstream HandyTone 701 – is a powerful analog telephone adapter (ATA) of the next generation, which works through IP protocol.
SpeedVoIP Communication Technology Co., Ltd
SpeedVoIP, Inc. is a leading designer and manufacturer of innovative and cost-effective VoIP telephony products, and becomes a major OEM vendor of VoIP terminal products and solutions in the rapidly growing global IP telephony market.
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