Some years ago when data exchange between a company and its vehicles was only a few Kbs, a simple GPRS connection was more than enough to cover their needs. Nowadays the companies that depend on their vehicles for their business, they need a reliable, high bandwidth WAN connection. Getting this in a vehicle is not easy. There are many different standards, operated via different frequencies and uses different antenna technologies. The wave propagation is affected by buildings, glass coatings and other obstacles. But we have the solution.