NetQualNetQual is a suite of QoS systems for testing, monitoring and analysis of quality of service on packet and circuit switched networks. NetQual is fully transparent to the network technology in use and provides accurate end-to-end Speech, Data and Video testing capability on both fixed and mobile networks. This central server based solution uses distributed probes to collect data and stores it in its central database for retrieval, assessment and reporting. Thanks to its modular and flexible architecture, NetQual is the optimal solution for both network-wide monitoring as well as point-to-point testing. For network-wide monitoring, the NetQual Test Manager and the NetQual Database/Processing system are configured on a central server with multiple NetQual Measurement Probes distributed through out the network. Via directory sharing or via FTP server, all Probes are remotely controlled by the Test Manager. Measurement data is automatically transferred to the Database/Processing system for reporting and detailed analysis. NetQual provides IP, PSTN and ISDN (PRI & BRI) interface capability as well as connectivity to 2G, 2.5G and 3G mobile terminals thus enabling true end-to-end measurement covering all possible combination of networks and technology. Thanks to its flexible interfacing capabilities, including the use of commercial mobile and IP terminals, NetQual is able to assess the true quality from the perspective of the end-users. An integral part of NetQual, is its ability for Speech Quality Assessment. This capability is enhanced with a number of extra measurements:
A non-intrusive speech quality algorithm is now available, allowing the quality of any transmitted speech signal to be assessed without sending a reference. NetQual can be configured with this non-intrusive speech quality algorithm thus enabling voice quality assessment of any live call, or special test calls made to any type of standard answering/responder station. With test options such as HTTP, FTP, UDP, Email, SMS and MMS, NetQual supports testing of Internet/ Intranet service accessibility and performance at both static and mobile locations. Again, thanks to its variety of interfacing options, such services can be tested end-to-end from a mobile subscribers point of view, as well as between Probes located within the fixed core/backbone network. NetQual is also capable of handling the increased demand for assessing Multimedia quality. An optional algorithm for quality assessment of video streaming and video telephony is available. This allows a reference video sequence to be transmitted across the network under test. NetQual's Post-processing system, can be configured both as a single user application and as a central database serving multiple post-processing clients. The system, including a powerful set of features for data administration, filtering, analysis, statistics and automatic generation of reports, provides the user with simple and fast access to the information of interest.
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