Brings together answers and solutions for delivering Voice Over IP (VoIP) services with the quality customers demand. This book also covers the combined issues of protocol signaling, media transport methodology, reference topological considerations, and voice quality testing in service offerings.About the Author: Bill Douskalis has been designing, developing, deploying and troubleshooting network equipment and systems for over 20 years. He has worked extensively with a number of leading telecommunications companies, including AT&T Bell Laboratories' ACCULINK and Sprint's ION network.