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.
Introducing our on-demand voice broadcasting application on cloud. only pay when you use it.daily price from $2 to $16,etc . no contract, no commitment, use your own trunk.