An E-Model Implementation for Speech Quality Evaluation in VoIP Systems. - Leandro S. G. de Carvalho; Edjair de Souza Mota; Regeane Aguiar; Ana Flàvia M. de Lima; José Neuman de Souza; Anderson Barreto (ISCC, 2005)

Monitoring based on statistical analysis for evaluating speech quality of calls in VoIP environment. - Ana Flàvia M. de Lima; Francisco Ribeiro; Maiquel Sampaio de Mel; Leandro S. G. de Carvalho; Regeane Aguiar; José Neuman de Souza; Edjair de Souza Mota (LANOMS, 2005)

A framework for network quality monitoring in the VoIP environment. - Ana Flàvia M. de Lima; Leandro S. G. de Carvalho; José Neuman de Souza; Edjair de Souza Mota (Int. J. Netw. Manag., 2007)