High Speed Internet Access is required. It must be persistent (always on), static (address never changes) and must be accessible via public (not private) address. Examples of such broadband services would be: DSL, T1, Cable Modem ... etc. In general terms, the higher the speed, the better. For example, a 1.5 mbps T1 is plenty fast, and allows headroom to use other voice and data services. A 385k Synchronous DSL would be a minimum type of connection.