... &QCIF adjustableSystem ResourcesPentaplex function:live,recording,playback,backup & remote access;User InterfaceSupport Combined encoding ... function supportedAudioAudio ConpressionEasy backup methods:USB devices,remote network and client software backupBidrectional TalkAlarm triggering ... hibernationg,HDD faulty alarm,Raid functionPlaybackPowerful network software:built-in web server,multi-DVR client ...