NDLI: A Comparative Study of VoIP Standards with Asterisk

Content Provider	IEEE Xplore Digital Library
Author	Montoro, P. Casilari, E.
Copyright Year	2009
Abstract	Since the apparition of Voice over IP (VoIP), many standards (mainly signaling protocols and codecs) have arisen with the aim of enabling voice calls through data networks. This paper describes a comparative study to evaluate the performance of a representative set of these standards when transmitting voice streams in a packet network. Asterisk PBX software is employed to define a testbed that allows to monitor diverse performance parameters in actual VoIP connections after the call establishment phase. Performed tests include the use of SIP and IAX (with and without trunking) signaling protocols as well as four different codecs. The obtained Results (expressed in terms of processor utilization, memory usage and network bandwidth consumption) show the clear benefits of employing IAX with trunking.
Starting Page	1
Ending Page	6
File Size	288051
Page Count	6
File Format	PDF
ISBN	9780769536958
DOI	10.1109/ICDT.2009.8
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-07-20
Publisher Place	France
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Protocols Codecs Internet telephony Software testing Bandwidth Streaming media Packet switching Telecommunication standards Code standards Software performance trunking Voice over IP Asterisk SIP
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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