Estudo e implementação dos principais protocolos de sinalização utilizados em telefonia corporativa no Asterisk

Abstract

This monograph presents the study of the main telephony signaling protocols used by business users at the junction between his private switching telephone network and the public switched telephone network and the implementation of these protocols in open source software Asterisk. There are many advantages encountered by enterprises in the use of the Asterisk as a platform for junction with the network of telephone operators, but to take advantage of these benefits is necessary that the server that will support Asterisk is correctly configured and operated. In most companies are experts in the field of information technology responsible for these functions and it requires of them knowledge in the field of telephony. This work comes meeting this need by providing information concerning the elements found in the corporate phone networks, the services offered by operators and signaling protocols. At the end of the work presents the implementation of signaling protocols MFC/R2 and ISDN PRI on a Asterisk server E1 digital interface and the commands used in the operation and maintenance of the server.