DocumentCode :
239542
Title :
Modeling and simulation applied to capacity planning of voice gateways: A case study
Author :
Ribeiro Alves, Muriel ; Matias Junior, Rivalino ; de Freitas Filho, Paulo Jose
Author_Institution :
Sch. of Comput. Sci., Fed. Univ. of Uberlandia, Uberlandia, Brazil
fYear :
2014
fDate :
7-10 Dec. 2014
Firstpage :
3143
Lastpage :
3154
Abstract :
In this work, we applied modeling and simulation to plan and evaluate the capacity of a real enterprise voice gateway system. We modeled the analyzed voice gateway and assessed it under different workload scenarios. We evaluated the actual setup under the real current workload demand, as well as future expected demands in terms of voice long-distance calls using PSTN and VoIP providers. Also, the existing voice gateway capacity was tested facing calls to mobile phones through GSM Sim cards. Finally, we tested a proposal setup to reduce the number of simultaneous E1 channels used per voice call, and found that our approach reduced the E1 usage rate by 14%.
Keywords :
Internet telephony; cellular radio; mobile radio; GSM sim card; PSTN; VoIP; enterprise voice gateway system; mobile phone; voice gateway capacity planning; voice long-distance calls; Analytical models; Computational modeling; Educational institutions; GSM; Logic gates; Mobile handsets; Predictive models;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Simulation Conference (WSC), 2014 Winter
Conference_Location :
Savanah, GA
Print_ISBN :
978-1-4799-7484-9
Type :
conf
DOI :
10.1109/WSC.2014.7020151
Filename :
7020151
Link To Document :
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