With digital sinageadvertising standards have come a long distance that has led to the development of good variety of great digital signature software’s that would integrate well with almost every distributed IP video solutions. The software used is also known as captured audience network or CAN which is in fact an essential part of any network that controls the IP video distribution to any display monitor on the network. When in an indoor building or outdoor area utilizing a covert camera the first thing people try to locate are the cameras. Whether there is one or many of them you see them, they see you and it is a great form of security and monitoring. Cameras can either be color or black and white. While less expensive, black and white cameras are better for out-of-door use and low light environments. As mentioned above about seeing the cameras, which are called overt cameras, they can also be installed to be covert, that is disguised or hidden so as to give the appearance it or they are not there. Covert cameras can be hidden in places such as smoke detectors, exit signs, tuners and wall clocks. Security is a major concern for everyone As a result, lots of money is spent to have the ultimate DVR security system. However, the spotlight always shines on cutting-edge security contraptions and gizmos. The truth is, you need to have a very impressive DVR security software to make the whole system work. Make sure what you're buying is what you need when you purchase a security system. Somtimes paying a little extra is exactly what is called for.