The Dinstar Analog VoIP gateway is designed to connect seamlessly with your analog phones, fax machines and legacy PBX with IP PBX systems and IP Phone networks. The DAG series includes a full range of robust gateways, from 1 to 112 FXS ports, 4 to 16 FXO ports, and hybrid 4FXS4FXO, 8FXS8FXO widely used by telecom operators, service providers and enterprises.