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.
SIJ Communication is mainly focused on the VOIP wholesale business and hosted service provider for wholesale carrier. Our premium and standard routes fulfill our customer requirements with having good ACD and ASR.