The course aims to provide students with knowledge of VoIP technology. At the beginning of the course students are introduced to basic steps in conducting research. Then VoIP technology is presented in details. Topics covered include: Public Switched Telephone Network vs. Voice over IP technology, applications, advantages and challenges of VoIP, Quality assessment techniques for VoIP applications. Speech coding technology and packet loss concealment techniques are also presented. At the end of the course, students’ projects will be discussed and presented.