Diseño de un prototipo IP-PBX software libre para el centro de formación continua con integración al CUCM de la UPS.

Abstract

This document has its reason for being, in presenting an IP voice solution, based on the design of an IP-PBX prototype proposal working over the Elastix open source software. The design privides a solution to IP communication requirement of Centro de Formación Continua San Bartolo, and its integration with the CUCM Cisco Unified Communications Manager implemented and existing at the Universidad Politécnica Salesiana. By taking data about: topologies, leased links, network equipment in operation, addressing, implemented services, applications, etc, the current situation of the infrastructures of Universidad Politécnica Salesiana and Centro de Formación Continua San Bartolo is described, the proposed solution presented in the document includes since the configurations of Elastix server, up to the monitoring of circulating traffic through the Netflow Analyzer and Wireshark softwares. Through the configuration of interactive sessions of SIP trunks, the two extremes are integrated; in general processes that account for the development of a functional solution. The most relevant configurations and installations presented in the document are: the Elastix IP voice server, the equipment used in touting and switching, the installation of additional programs and servers. The IP voice carries with it standard that guarantees its quality, performance and functionality, in addition these lead to the proposed solution, to the degree of feasibility for example, the ITU-T G.114 standard establishes a latency for IP voice traffic circulating, not grater then 150ms.