PABX over local network

• Grant number: 02/02220-3
• Support Opportunities: Research Grants - Innovative Research in Small Business - PIPE
• Start date: May 01, 2003
• End date: October 31, 2003
• Field of knowledge: Engineering - Electrical Engineering - Telecommunications
• Principal Investigator: Dagoberto Agenor de Sousa
• Grantee: Dagoberto Agenor de Sousa
• Company: E+I Engenharia da Informação Ltda
• City: Campinas

Abstract

This project aims to study the viability of constructing a PABX System over an existing local network, using Voice over IP, the telephone terminals of which are linked to stations (personal microcomputers) and the control center of which is hosted on a server equipped with multiple interfaces with telephone lines of the Public Switched Telephone Network (PSTN) and, when the conditions exist, for a quality connection, interconnected to the internet. The project should lead to a Distributed PABX System, the implementation of which takes advantage of the local network of microcomputers existing in the companies for the purposes of reducing the installation costs and even justifying its economic advantage. Therefore, it is necessary to investigate, within the ambit of the project, the technical limitations of the components available in the businesses and define the minimum technical requirements and other conditions for their taking advantage of the setting up of the PABX over local network. The study should end with the implementation of a prototype with a minimum configuration, in which the basic features of PABX will be developed and tested, making internal communication and connection to the fixed network the priority, including the existing PABX, with the aim of verifying the technical viability of the project. (AU)