Conventional Telephony
Mostrando 1-4 de 4 artigos, teses e dissertações.
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1. Proposta de um procedimento para a modelagem de sistemas de controle de edifícios inteligentes utilizando a rede de Petri colorida. / A procedure for modelling the control system in intelligent buildings based on colored Petri nets.
Technological advances in recent decades have motivated the development of intelligent buildings, aimed at creating environments more productive for the occupants, economically advantageous for the owners and environmentally correct. New ways of interaction between users and the buildings systems are emerging from these kinds of systems, which are not adequa
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 22/08/2011
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2. AvaliaÃÃo da Qualidade de Voz do ServiÃo VoIP em Sistemas HSDPA / Evaluation of the quality of voice of the VoIP service in systems HDSPA
In recent years, we can observe the development and fast dissemination of VoIP services, being integrated by the present market, beside conventional telephony and cellular networks. For being a technological alternative that contributes to minimize costs, we see an increasing preference for voice transmission through IP networks. HSDPA, as a cellular system,
Publicado em: 2007
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3. Cancelamento de eco em telefonia IP
The objetive of this thesis is the study about echo cancellation in a IP telephony, providing a new technique better than the actual one employed in gateways. This technique takes account the fact that the delay in an IP network is variable. This work presents an overview on adaptive lter subject, following an study about echo cancellation in a PSTN network,
Publicado em: 2004
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4. AplicaÃÃes VoIP Utilizando o Teleporto da Rede Metropolitana da Prefeitura Municipal de Manaus
O fenÃmeno da ampla disseminaÃÃo da Internet na Ãltima dÃcada do sÃculo XX trouxe a popularizaÃÃo da tecnologia de redes de computadores e de seu protocolo padrÃo, o TCP/IP. A cada dia, um nÃmero maior de aplicaÃÃes migram para uma soluÃÃo TCP/IP. A telefonia convencional de uma delas. Hoje os prÃprios troncos das companhias telefÃnicas sÃo,
Publicado em: 2004