Unless your clients have just returned from a stint on Mars, there is every chance they will already have used VoIP, though they may not call it that. VoIP, or Internet telephony, has been one of the undoubted technology success stories of the last few years. Skype alone claims 200 million users, many of whom work in small and mid-sized businesses.

The trend towards converged security requires companies to keep their eye on physical premises. Here's how to specify and deploy an IP-based video surveillance solution for your small business clients.