Building Next Generation Internet Services for Fun and Profit

This is a final report for the topic “Voice over IP and the Modern Web ” introduced in the Advanced Seminar “Building Next Genera-tion Internet Services for Fun and Profit ” at the Technical University of Munich. It first describes the history of telephony and the problems behind the technology which lead us to Voice over IP. This final report introduces the terminology of Voice over IP and presents then a short overview of the most important existing services and clients. Then it discusses which communication problems are being solved with VoIP, which problems emerge and what are the pros and cons of the tech-nology. Finally, new approaches, crucial issues and the future of Voice over IP and its relations to Web 2.0 are being discussed