Dinstar PRI gateway solutions, including the MTG series, are E1/T1 Digital VoIP Gateways that seamlessly connect VoIP networks with legacy PSTN systems, such as traditional PBX and E1/T1 service providers. Scalable up to 63 E1 or T1 lines, these gateways support ISDN PRI, SS7, and R2 MFC signaling, along with various voice codecs and the SIP protocol.