Using a Multi-Layer Approach to tackle the Service Interaction Problem in Telephony Scenarios

Abstract

The inauguration of IP telephony as a new and promising technology has opened the door to a variety of enhanced communication services and applications, which differ from those of the PSTN. The shift from circuit switched to packetbased networks, from a central to a more decentral organization, from professional and vendor driven development to an open development environment enables a multitude of opportunities