This book provides an overview of the major players of the industry, an explanation of the existing telecom infrastructure, and the structure and tools available to most small to medium-sized businesses. It will help readers identify the telecom services that are best suited to their needs, understand billing, and troubleshoot problems. It will also delve into important industry trends, such as VoIP, and how they affect and/or can be applied to your business to help you save money and resources