* CCTV (closed-circuit television) is a TV system in which signals are not publicly distributed but are monitored, primarily for surveillance and security purposes. CCTVrelies on strategic placement of cameras and private observation of the camera'sinput on monitors. * Step 1: CONNECT DVR TO MONITOR DIRECTLY. Just connect your CCTV DVR to monitor via VGA or HDMI CABLE. Step 2: CONFIGURE CCTV DVR SETTINGS. For configuration. ... Step 3: NOW CONFIGURE WIFI ROUTER FOR DVR. ... Step 4: CONNECT DVR TO WIFI VIA LAN CABLE. ... Step 5: CHECK THE SETTINGS. ... Step 6: NOW CONNECT TO ANDROID PHONE. * A CCTV digital video recorder (or “DVR” for short) is essentially a computer that saves security video images to a hard drive. Most security cameras in use today capture an analog picture. The DVR converts the analog signal to digital and then compresses it. ... DVRs generally come with 4, 8, 16, or 32 camera inputs .