DAG1000 series hybrid analog gateways are multi-purpose IP-based voice and fax gateways. DAG1000 supports kinds of work places, for small business, work at home, remote office and branch businesses and provides a low cost, simple operation VoIP solution. FXS/FXO hybrid gateway can support network failure and power failure lifeline feature, flexibly achieve interoperability with simulation PBX and offer reliable voice quality assurance for the traditional voice transition to IP voice. It also supports standard SIP protocol and can be compatible mainstream IPPBX and softswitch platform.