| Título: | Speech Quality Monitoring in Czech National Research Network |
| Autores: |
Voznak, Miroslav; VSB - Technical University of Ostrava Rezac, Filip Rozhon, Jan |
| Fecha: | 2011-05-16 |
| Publicador: | Advances in Electrical and Electronic Engineering |
| Fuente: |
 |
| Tipo: |
|
| Tema: | QoS; R-factor; E-model; Speech quality; Monitoring. |
| Descripción: | This paper deals with techniques of measuring and assessment of the voice transmitted in IP networks and describes design of quality measurement, which can be used for Cisco Gateways. Cisco gateways send Calculated Planning Impairment Factor in every CDR (Call Detail Record). Our design is based on collection of CDR's, their storing into SQL database and their visualization through web page. This design was implemented and successfully tested in CESNET network. |
| Idioma: | Inglés |
1 The Applications for the Calculation and Optimization of Passive Optical Networks Attenuation Characteristics por Lafata, Pavel,Vodrazka, Jiri | 6 Binary Modulation Formats in Optical Access Networks por Tejkal, Vladimir,Filka, Miloslav,Reichert, Pavel,Sporik, Jan |
2 The Study of Sensory Properties of Quasi-Singlemode Fiber por Koudelka, Petr; Department of Telecommunications
Faculty of Electrical Engineering and Computer Science
VSB-TU Ostrava
17. listopadu 15/2172
708 33 Ostrava-Poruba
Czech Republic,Latal, Jan,Siska, Petr,Hanacek, Frantisek,Skapa, Jan,Vasinek, Vladimir | 7 Optical Fiber Sensor with Distributed Parameters Based on Optical Fiber Reflectometry por Korenko, Branislav,Jasenek, Jozef,Cervenova, Jozefa,Hlavac, Marek |
3 Fiber Optical Sensor for High Temperatures por Hanacek, Frantisek; Site Administrator,Latal, Jan,Koudelka, Petr,Skapa, Jan,Siska, Petr,Vasinek, Vladimir,Hurta, Jan | 8 Future of Electrotechnics: Ferrofluids por Mayer, Daniel |
4 The Soliton Transmissions in Optical Fibers por Bohac, Leos | 9 Analysis of Simulated Reflection Characteristics of Uniform and Apodized Fiber Bragg Gratings por Gemzicky, Erik,Mullerova, Jarmila |
5 Influence of Magnetic Field on Electric Charge Trasport in Holmium Thin Film at Low Temperature por Dudas, Jan,Gabani, Stanislav,Bagi, Jozef,Goscianska, Iwona,Hodulikova, Anna | 10 WDM in Courses of Communication Technologies por Filka, Miloslav,Bernkopf, Miroslav |