Compass International Co., Ltd China
- Hosted VoIP billing service provider
- International VoIP Wholesale Provider
- VoIP Billing Software Provider
- Termination
- Cisco Systems
- another
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.
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