Evaluación de la Red de Telefonía IP de la FIE para la Implementación del Uso de Smartphone

Abstract

The internet Protocol Telephone Network (IP) was evaluated in the Faculty of informatics and Electronics, located in the “Escuela Superior Politécnica de Chimborazo”, to implement the use of Smartphone, measuring bandwidth and traffic of the network. For the evaluation, bandwidth and traffic were measured with the respective iperf software and Simple Network Management Protocol (SNMP). For the implementation it was assigned an Internet Protocol address to Elastix server and Session Initiation Protocol (SIP) and the Real Time Transport Protocol (RTP) were enabled, in different VLANs of the Faculty of informatics and Electronics. The Elastix Servers and Smartphone were configured to assign extensions and allow registration with the server. With the implementation it was possible to improve communication among teachers of Faculty of informatics and Electronics, offering the following services: calls, mailbox and voicemail for free between Internet Protocol phones and Smartphones, implementing the use of the latter. Teachers who were trained and benefit from the project accepted it in 90% of the provision of services, which has no cost. Using multiple codec produces more work to the telephony server Internet Protocol, it is therefore, necessary to use only one type of encoder-decoder (codec), then after analyzing the codecs, the G.711 was used. It was found that compatibility between Internet Protocol phones and Smartphones is possible thanks to the SIP protocol that helps initiate and finalize registration Smartphone. It is also recommended to make use of the RTP protocol, which allows transmission of voice in real time on calls to users.