Large Scale Voice over IP Experiences on High Performance Intranets
The goal of this paper is to provide some feedback on a VoIP pilot project developed over the Federico II University high performance metropolitan transport network, presenting an overview of the activities which have been taken since the pilot was started. The project was initiated in order to analyze the capabilities of VoIP technologies, figuring out their quality of service and interoperability requirements, the optimum call routing practices and to identify the challenges in building large voice over IP applications. As a result we realized, managed and tested a rather complex VoIP infrastructure transporting all the internal voice traffic between the three main aggregation areas grouping our University’s sites in Napoli, which smoothly moved from a research system into an operational state.
KeywordsMean Opinion Score Backup Path Voice Call Voice Packet Voice Traffic
Unable to display preview. Download preview PDF.
- 1.Black, U.: Voice over IP. Prentice Hall, Englewood Cliffs (2000)Google Scholar
- 2.ITU-T, One Way Transmission Time, Recommendation G.114 (1996)Google Scholar
- 3.Clark, A.: Modeling the effects of burst packet loss and recency on subjective voice quality. In: Proceedings of IP Telephony Workshop (2001)Google Scholar
- 4.Mullin, J., Smallwood, L., Watson, A., Wilson, G.: New techniques for assessing audio and video quality in real-time interactive communications, IHM-HCI Tutorial (2001)Google Scholar
- 5.Pearsall, S., Walker, J.Q.: Doing a VoIP Assessment with Chariot VoIP Assessor, NetIQ Corporation (2002)Google Scholar
- 6.ITU-T, The Emodel, a computational model for use in transmission planning, Recommendation G.107 (1998)Google Scholar