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 one of the leading wholesale VoIP Termination service providers in UK providing an efficient and most reliable VoIP service to Calling Card Companies, Call Shops, Call Centers, ISP/ITSP, Business Enterprise and more.