Dinstar DAG2500 is a functional analog gateway offering seamless connectivity between VoIP and traditional phone systems. It's a highly-integrated gateway that provides 48/64/72 FXS ports with a standard R21 interface in 1U size. Users can easily connect their analog phone, fax, PBX via a standard voice interface. DAG2500 supports the standard SIP protocol and it's compatible with the Leading IMS/NGN platform and SIP-based IP telephony system. It is ideally suited for small and medium businesses, call centers, and multi-location environments that need VoIP services.