Internet protocol or IP security refers to a type of digital video camera surveillance than, unlike CCTV systems, operates exclusively via a computer network and the internet. Network IP cameras can be remotely operated in a number of ways, including via web browser, supplied software or even a mobile phone, and often have additional features such as two way audio, which allows you to both listen to and speak to those in range. They're great for monitoring your office from home (or vice versa) and, even if you're not constantly watching the video stream, you can configure a network security camera to set off an alarm and even alert you personally should it detect anything amiss. Additionally, the easy availability of affordable wireless IP cameras allows you to set up a mobile and remotely accessible security system wherever you need it.