AddPac AP-GS1004A is one of the models of inter-network VoIP GSM gateways, through which, it is possible to format a single network unit and to use it for VoIP-telephony, analog communication lines and GSM-network.
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