Communication quality of voice over TCP used for firewall traversal

Hae Yong Yang; Kyung Hoon Lee; Sung Jea Ko

doi:10.1109/ICME.2008.4607363

Communication quality of voice over TCP used for firewall traversal

Hae Yong Yang, Kyung Hoon Lee, Sung Jea Ko

School of Electrical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

3 Citations (Scopus)

Abstract

As voice over IP (VoIP) services are becoming more widespread, UDP-restricted stateless firewalls (URSFs) have emerged as one of the main hurdles for deploying the service. By overcoming this obstacle, the new VoIP service Skype has gained rapid popularity. To traverse URSFs, Skype uses an abnormal transport method, namely voice over TCP (VoTCP). This paper investigates the effects of VoTCP on communication quality, and examines its operational network conditions. The experimental results show that the adoption of TCP for voice traffic causes a remarkable deterioration in the quality of service; however, VoTCP is applicable in a relatively clean network, such as the Skype's VoTCP section between a client and the client's super node. More specifically, if the jitter buffer size is adequately tuned, VoTCP can operate at a random packet loss probability of less than 1.6%.

Original language	English
Title of host publication	2008 IEEE International Conference on Multimedia and Expo, ICME 2008 - Proceedings
Pages	29-32
Number of pages	4
DOIs	https://doi.org/10.1109/ICME.2008.4607363
Publication status	Published - 2008
Event	2008 IEEE International Conference on Multimedia and Expo, ICME 2008 - Hannover, Germany Duration: 2008 Jun 23 → 2008 Jun 26

Publication series

Name	2008 IEEE International Conference on Multimedia and Expo, ICME 2008 - Proceedings

Other

Other	2008 IEEE International Conference on Multimedia and Expo, ICME 2008
Country	Germany
City	Hannover
Period	08/6/23 → 08/6/26

Keywords

Firewall traversal
Qos
Skype
Voice over IP
Voice over TCP

ASJC Scopus subject areas

Computer Graphics and Computer-Aided Design
Electrical and Electronic Engineering

Access to Document

10.1109/ICME.2008.4607363

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Communication quality of voice over TCP used for firewall traversal. / Yang, Hae Yong; Lee, Kyung Hoon; Ko, Sung Jea.

2008 IEEE International Conference on Multimedia and Expo, ICME 2008 - Proceedings. 2008. p. 29-32 4607363 (2008 IEEE International Conference on Multimedia and Expo, ICME 2008 - Proceedings).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Yang, HY, Lee, KH & Ko, SJ 2008, Communication quality of voice over TCP used for firewall traversal. in 2008 IEEE International Conference on Multimedia and Expo, ICME 2008 - Proceedings., 4607363, 2008 IEEE International Conference on Multimedia and Expo, ICME 2008 - Proceedings, pp. 29-32, 2008 IEEE International Conference on Multimedia and Expo, ICME 2008, Hannover, Germany, 08/6/23. https://doi.org/10.1109/ICME.2008.4607363

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