Richard Lau 
Service Assurance for Voice over WiFi and 3G Networks [PDF ebook] 

Due to key developments in the telecommunications industry, such as Voice over Wi Fi and 3G network integration, together with increasingly aggressive competition and rapid technology changes, service providers are faced with the challenge of creating a new, service-centric management model that provides for the creation of new services and assures superior service quality. This unique resource offers a practical view of the service model concept and discusses the management issues that you need to understand in order to implement an effective management solution for operating in today’s competitive environment.