Análisis e Implementación de un Registrador de Ubicación de Abonado (HLR) Virtual en el Lenguaje Abierto Preprocesador de Hipertexto (Php) Sobre Linux que Gestione Consultas a Nivel de Protocolo de Señalización Parte de A

Abstract

This document showsthe development process of simulation of a subscriber location system in the moment the subscriber changes from one coverage area to another one, employing the MAP signaling protocol within an SS7 network. Employing a Linux-based operative system and PHP programming language, we program the values and parameters which must be sent between the different elements of the mobile telephone network (HLR, VLR, MSC, MS). We have developed a graphic interface thus the messages and parameters can be checked with the purpose of a better understanding of the cell phone functioning within a telephone network in the moment the user changes between two different coverage areas. This work is aimed at students in telecommunications-related careers. Limitations are given by the physical network. The routers have a maximum range of 6m and the network wires 100m.