Most Wray Castle courses deal with one specific technology area, designed either for a technical or a non-technical audience. However, the course in this category is specifically designed to provide a big-picture view of the telecoms world. It deals with a wide variety of technologies and describes their interdependencies.

There is material in this category that is suitable for those new to the industry and for those with an existing telecoms background. Equally, there is material that is suitable for those with a strong technical focus who wish to form a better overall view of how their area of expertise fits into the wider technical arena.

Industry and technical aspects are both dealt with in this category. The technologies covered relate to all aspects of fixed and mobile network operation. This includes switching, routing, signalling, transmission, data networking, IP issues, security, radio principles, radio access, standards bodies and the structure of the industry itself.