AddPac AP-GS1001C is an entry level VoIP-GSM gateway, designed to work with one GSM channel. The device allows you to connect to the VoIP-telephony, analog lines and GSM networks. At the same time, users are able to transfer traffic in any direction lines are connected to: VoIP to GSM; an analog network to GSM; from analog to VoIP network.
Provide wholesale international callback service in China for voip service providers and call shops. We offer competitive price and billing system to our wholeseller. We are using SS7 PSTN line and no connection fee to customers.