Análisis e Implementación en el Lenguaje Abierto Preprocesador de Hipertexto (PHP) Bajo Linux de una Central de Conmutación Móvil (MSC) Virtual para la Interacción a Nivel de Protocolo de Señalización Parte de Usuario de Red Digital de Servicios Integrados (ISUP) con un Sistema de Respuesta Interactiva (IVR), Elemento que Presta el Servicio de Ingreso y Consulta de Saldos para los Abonados Prepago de una Red Celular

Abstract

This work simulates the operation of a Mobile Switching Center (MSC) which has the implementation of the protocol stack signaling SS7 called integrated services user part of a digital network (ISUP) to interact with an interactive re-sponse system (IVR) of a mobile telephone network. The components of the network were developed in the open source hypertext preprocessor (PHP) and were implemented in laptops employing a Linux-based operative system in Ubuntu. A graphical interface was developed in order to get more detailed information of each ISUP signaling message. The large number of optional parameters that let the transport of ISUP messages provides the flexibility to adapt the implemented system to a large number of requirements, and it makes our project be able to simulate the real behavior of a mobile telephone network in the world with all the services that it includes.