The document provides an overview of considerations for implementing hosted VoIP for small to medium sized businesses. It discusses the technology behind VoIP, benefits of hosted VoIP such as cost savings and scalability, and network requirements including bandwidth, internal wiring, firewalls, routers and quality of service. The summary highlights that VoIP requires CAT5/6 wiring and a managed network switch with quality of service enabled. It also notes that either a network assessment or trial period is recommended before full deployment to ensure network readiness.