Video monitoring system comprising a camera for transmitting images to a remote location; video monitoring system comprising a microphone, a speaker, a doorbell, and a camera for transmitting images to a remote location; electric doorbell; video surveillance system comprising a video camera and a microphone; building monitoring system comprising a microphone and a speaker; building surveillance system comprising a video camera and camera hardware systems for internet protocol video surveillance; visitor identification system comprising biometric identification apparatus; security system comprising monitors and recorders; motion detection system comprising motion detectors; home automation system comprising a controlled device and software control applications; communication system comprising computer hardware and software for the transmission of data between two points; wireless data communication device for transmitting images taken by a camera; wireless data communication device for voice, data, or image transmission