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The model of end-to-end call setup time calculation for Session Initiation Protocol

Abstract

End-to-end call setup delay is one of the most important grade of service (GoS) parameters for VoIP networks with Session Initiation Protocol (SIP). A typical subscriber wants to have a connection established as soon as possible. From the operator's perspective call setup time is also crucial because he needs to know how probability of successful packet transmission on SIP links is related to a call setup delay. Then he can make calculations how many resources are needed to guarantee such a transmission. In this paper we proposed the model for end-to-end call setup time calculation. The fundamentals of the model are to check all or almost all (highly probable) possible situations during the call setup. Formulas for calculation are included and results of numerical calculation are presented. Comparison against the values obtained from simulation shows that it is possible to make calculations of end-to-end call setup time and prepare discrete cumulative distribution function for trapezoid model in reasonable time using the proposed model.

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DOI:
Digital Object Identifier (open in new tab) 10.2478/v10175-012-0014-9
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Creative Commons: CC-BY-NC-ND open in new tab

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Details

Category:
Articles
Type:
artykuł w czasopiśmie wyróżnionym w JCR
Published in:
Bulletin of the Polish Academy of Sciences-Technical Sciences no. 60, pages 95 - 101,
ISSN: 0239-7528
Language:
English
Publication year:
2012
Bibliographic description:
Gutkowski P., Kaczmarek S.: The model of end-to-end call setup time calculation for Session Initiation Protocol// Bulletin of the Polish Academy of Sciences-Technical Sciences. -Vol. 60, iss. Nr 1 (2012), s.95-101
DOI:
Digital Object Identifier (open in new tab) 10.2478/v10175-012-0014-9
Verified by:
Gdańsk University of Technology

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