D-Link DVG-3104MS VoiceCenter 4-Port PSTN Gateway for Response Point The DVG-3104MS 4-Port PSTN Gateway plays a vital role in the D-Link VoiceCenter phone solution because it is responsible for bridging and routing outside PSTN lines into the VoiceCenter internal IP-based phone system Because the entire VoiceCenter phone system is designed with simplicity in mind, installing additional DVG-3104MS Gateways to an existing phone system is a breeze The D-Link DVG-3104MS 4-Port PSTN Gateway enables integration of reliable PSTN phone lines to VoiceCenter, a Microsoft Response Point phone solution