TY CONF TI RESEARCH OF THE PROCESS OF TRANSFER OF THE SPEECH SIGNAL IN NETWORKS WITH COMMUTATION OF PACKAGES BY METHODS OF ANALYTICAL AND SIMULATION MODELINGS KW network planning KW voice quality KW E-model JO CAD/EDA/SIMULATION IN MODERN ELECTRONICS 2019 AU Ilyushin, M.V. AU Laktyushin, I.A. AU Karabcev, I.A. PY 2024 PB Bryansk State Technical University