... Zoom and PIPSupportMultiplex Operationlive, record, playback, backup, network transmission,mobile phone surveillanceDisplay ResolutionPAL:D1(704*576), ... and time period backupNetwork Transmission4 channels real-time Network transmission with CIF resolutionRecording PlaySupport Special player, ... SNTP,NTP,UPNPIE Browser, client softwareSupportCMSSupport(One software for at most 50 DVR ),Free supply to ...