2 research outputs found

    A Lightweight Privacy Preserving Approach for Analyzing Communication Records to Prevent VoIP Attacks Using Toll Fraud as an Example

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    InvestigaĆ§Ć£o, desenho e implementaĆ§Ć£o de soluƧƵes de comunicaĆ§Ć£o de Voz sobre IP

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    O crescimento de implementaĆ§Ć£o de soluƧƵes de Voz sobre o protocolo de Internet (VoIP) Ć© notĆ”vel, muitas sĆ£o as empresas e utilizadores comuns que fazem uso dessa tecnologia, por ser de baixo custo e permitir diversos recursos. No entanto, este crescimento Ć© acompanhado de fatores que comprometem a qualidade de serviƧo. EstĆ” dissertaĆ§Ć£o descreve os elementos importantes para a implementaĆ§Ć£o de uma soluĆ§Ć£o VoIP, desde a seguranƧa, a configuraĆ§Ć£o da rede tendo atenĆ§Ć£o a tecnologia VoIP, alguns equipamentos, Softwares e provedores de serviƧo. Estes aspetos foram detalhados em alguns fatores como funcionalidades, suportes e entre outros. Por fim sĆ£o apresentados o desenho e a implementaĆ§Ć£o de uma soluĆ§Ć£o VoIP, sendo estes os objetivos principais desta dissertaĆ§Ć£o.The growth of the implementation of voice over Internet Protocol (VoIP) solutions has been remarkable, and many companies and users choose to use this technology, because of its low implementation and maintenance costs, its versatility in the use of different resources. Nevertheless, its growth is also matched by factors that compromise the quality of the service. This dissertation describes the elements that are important to the deployment of a VoIP solution, ranging from security, to network configuration, equipment requirements, software and service providers. These elements were detailed and studied regarding aspects such as functionality, support and other criteria. Finally, the design and implementation of a VoIP solution is presented as the major goal of this dissertation research
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