You get an overview of the key players in telecom, as well as an introduction to the structures that allow these players to work together. This part also offers you guidelines to identify the phone system you are currently using, to help you determine whether your business is a good candidate for dedicated phone service, and to help you identify the hazards of telephone fraud. This part wraps up with an overview of how calls are classified and explains why your international call to Canada doesn’t require you to dial 011.