VNPT Vietnam - Biggest Vietnam Government Telecomm Company - VASC is a one of main branches of VNPT.
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Please visit this link to test our quality http://vasc.com.vn/template/default/page/other/FormVOIP.aspx
We are the best provider in Vietnam in VoIP services as below:
- Termination service for traffic into Vietnam
- PC to phone service
- Phone to phone service
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NumberGroup provides business quality VoIP services to wholesale operators and SIP Trunk customers worldwide. We have over 1,000,000 UK and Internaiton telephone numbers are are a license UK operator with direct PSTN connectivity.
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