The OpenVox DGW-L301 Series E1/T1/PRI VoIP Gateway is a cost-effective, open-source Asterisk-based solution designed to connect traditional telephone systems (PSTN) to IP networks. It's particularly aimed at operators and call centers looking to integrate their legacy PBX systems with VoIP environments.

OpenVox DGW-L301 E1/T1/PRI Gateway is an open-source asterisk-based VoIP Gateway solution for operators and call centers. It is a converged media gateway product. This kind of gateway connects traditional telephone systems to IP networks and seamlessly integrates VoIP PBX with the PSTN. With a friendly GUI, users may easily set up their customized gateway.