Diseño e implementación de una herramienta generadora de llamadas automáticas para medir la calidad del servicio de un proveedor internacional de telefonía VoIP.

Abstract

It is possible that a VoIP communication infrastructure should serve a substantial number of users with acceptable voice quality. The present work investigates the suitability and quality of the service of international providers of telephony of voice over IP by means of the PBX server of Asterisk to provide communication capacities with an acceptable quality of Mean Opinion Score (MOS), used to evaluate the quality of voice calls, average Jitter and average packet loss, for a large number of users. The results show the suitability of three scenarios: successful call, unanswered call by the end user and call rejected by the provider, to characterize the capacity of the Asterisk PBX server. Experimental results have shown that Asterisk PBX can effectively handle a large number of voice calls, while providing an average MOS greater than 4.