Traffic analysis for IP telephony

Author

Toral-Cruz, H. ; Torres-Román, D.

Author_Institution

CINVESTAV IPN, Guadalajara, Mexico

fYear

2005

fDate

7-9 Sept. 2005

Firstpage

136

Lastpage

139

Abstract

There is a great interest today in voice communication over the Internet (VoIP) with a high level quality of service (QoS). Our objective in this paper is to assess to what extent today´s Internet is meeting this expectation. This work presents H.323 traffic analysis in the scenario where two LANs are connected through the Internet. For tests, series of H.323 calls between two endpoints were established, employing IP commercial cards and an Ethereal protocol analyzer for the packet reception. During the tests were taken into account a set of parameters such as: coded type, packet size (ms), and the voice activity detection. Relationships between the metrics: delay, jitter and packet loss were proved; considering real VoIP scenarios, and different types of codecs.

Keywords

Internet telephony; local area networks; quality of service; telecommunication traffic; transport protocols; voice communication; Ethereal protocol analyzer; H.323 traffic analysis; IP commercial cards; IP telephony; Internet voice communication; VoIP system; packet reception; packet size; quality of service; voice activity detection; Bandwidth; Circuits; Cities and towns; Costs; Delay effects; IEEE catalog; Telecommunication computing; Telecommunication traffic; Telephony; Transport protocols; CODECS; H. 323; IP Telephony; QoS; VAD; VoIP; Voice Traffic;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical and Electronics Engineering, 2005 2nd International Conference on

Print_ISBN

0-7803-9230-2

Type

conf

DOI

10.1109/ICEEE.2005.1529591

Filename

1529591