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.
Telepacket offers technologically advanced and cost-effective VoIP optimization, SBO optimizer and VoIP anti-clocking solution to help you improve quality of calls without increase the calling cost.