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.
Gem Telecom offer a range of high quality telephone carrier and VoIP services to its customers around the world. We offer substantial savings on both UK national and international calls.