In Wiltshire, United Kingdom, in 2003, a pilot scheme for what's now called "Chatting CCTV" was place into motion, enabling operators of CCTV cameras to communicate with the camera via a speaker when it is required. Analog cameras usually use coaxial cables to mail movie signals for the recording device. https://keeganccbzw.blogdiloz.com/33099155/5-simple-statements-about-closed-circuit-tv-cameras-explained