co-writing with Adrian Faduaga, Buenos Aires, on telecom management and other subjects should be mentioned. Adrian conducted a seminar on Voice and Data Convergence and Multi-Service Networks at the University of Buenos Aires in 2001. http://www.aefconsultores.com/PDF_Files/Espanol/AEF-Corporativa-Marzo_2003.pdf Appendix 1 My partner within this area has been Teledrom AB. Appendix 2 A partner within this area has been Chris Fletcher. References and Acknowledgements Appendix 3 This appendix is written by Hakan Akerstedt. Appendix 4 This appendix is written by Hakan Äkerstedt, assisted by Göran Ekstedt. Göran has also contributed to chapters 11, 12, 14 and 15. Many thanks! GENERAL REFERENCES AND ACKNOWLEDGEMENTS Platform Knowledge This area is for example represented by Understanding Telecommunications 1 and 2 The books have been available for years at http://www.ericsson.com/support/telecom/ authors.shtml (Telia-Ericsson) but are now probably removed. ISBN 91-44-00212-2 and ISBN 91-44-00214-9 IP Internetworking Learning Product See www.ericsson.com/services/globalservices/training.shtm Acknowledgement: the stimulating cooperation with Hans Nihlen, who led the devel- opment of this product should be mentioned. Chapter 1 provides some basic terminology. Among supporting material is for example: LoL@: a UMTS location-based service. Günther Pospischil, Harald Kunczier, Alexan- der Kuchar. http://lola.ftw.at/homepage/content/a40material/LoLa_a_location_based_service.pdf This book has been much inspired from the course Understanding the New Telecom, with Miltos Tricopoulos as one of the main teachers. http://www.ericsson.com/ie/training/courses/prd138.shtml Miltos has worked a lot with the figures in the book. IT Support to the Author Many thanks for a professional computer support go to my son, Staffan Olsson. Thanks a lot! Other Acknowledgements Other acknowledgements go to my patient and supporting wife Marianne, Erik Old- mark, who initially ordered the book project, Tessa Hanford, who did an excellent job as my cop