CCTV was primarily an analogue signal based system, a system that faced a lot of limitation in meeting the modern security requirements and ISO Standards. The Analog based CCTV system is a “one-way” communication system that transmits signals as voltage signals. Some of the limitation are, Low picture quality, limitation to integrate with other systems, non-flexibility in using the current networks and requires a complex cablings and infrastructure. On the other hand, IP CCTV system uses digital packet data transmission of videos, CCTV system has become more advanced in recent past and it had increased its popularity in the security surveillance market. IP CCTV system enabled people to use current and same network which they used for other systems. Most advanced integration with other
system with the likes of access control, alarm system, building management systems and so on, with the introduction of video management software(VMS) in the surveillance security industry, it has helped to get a lot of analytics features in CCTV security system. Using high mega pixel cameras in CCTV system made forensic investigation much easier and advanced. Market witnessed production of many high resolution cameras which use low bandwidth. When VMS companies started working with advanced video compression algorithms like H.264 and H.265, H.265+, High resolution Video security cameras have become feasible for the security industry. These things reduced cost of network infrastructure and the cost of storage space, thereby ensuring that everyone can own an advanced and useful system. Although currently majority of the market share is analogue CCTV system, IP based network CCTV systems are expected to take over in the near future.