Closed-circuit television (CCTV) is sometimes simply called video surveillance. CCTV refers to a system of video feeds that are transmitted within a closed system from various security cameras. CCTV is distinct from broadcast television, in that signals are not sent out for just anyone to intercept. Team AlephINDIA is committed to providing you the best quality services for all kind of technical certifications and testing equipment. Please visit www.alephindia.in to know more. AlephIndiaqms: A single window for all kind of technical certifications and testing equipment. BIS, WPC, ETA, TAC, BEE, CE, UL, Ewaste, FMCS, CPCB, CARE, ISIMark, Hallmark.