Some of the doorbell cameras also have motion sensing systems. Additionally, a doorbell camera can provide video interaction between the visitor and the host and enable a live or recorded videotape with the help of the integrated camera in the unit. The doorbell camera is connected with the smartphone and helps the host to track the visitor and make conversation. During the installation doorbell cameras takes the minimum number of wires and tools. Due to increasing rate of incidence of theft, burglary, robbery, home invasions, consumers want to secure their homes not just with a lock and key but also by using smart appliances. They also want to keep a track of visitors in their absence.