2002 - cesnet

create a reference document for experts from Europe’s NRENs, concerning theopportunities associated with IP telephony, including recommendations for theselection, configuration and use of individual components.The project includes seven institutions from five countries. It will last11 months – from November 2002 to October 2003. The output of the projectwill be constructed in the form of four documents (deliverables). The last onewill be a reference document, including e.g.: summary of technologies in IPtelephony, proposal of possible configuration scenarios and instruction forconfiguring basic and additional voice services, description of integration withpublic telephony network and the summary of legislative issues. This referencedocument will be available at www.terena.nl.8.5 IPTA – IP Telephony AccountingDuring the previous year, we created our own IPTA (IP Telephony Accounting)application, for the purpose of monitoring and accounting in the IP telephonynetwork. The application allows for detailed summaries of calls made by selectedcustomers during a selected period, together with complete summaries.In 2002, we extended the application with new demanded functions. These newfunctions include:• Statistics of engaged and unanswered calls.• Statistics of various types of error messages, with the possibility of summariesand deletions, sorted by periods, callers, the called numbers and typesof errors.• Increased reliability of locking data for concurrent access and an increasein the speed of processing call details.• Graphic illustration concerning individual types of calls (within the IPtelephony network, long-distance calls through PSTN, etc.), for individualrates, according to alternative pricelists and depending on the success rate(answered, unanswered). For these diagrams, it was necessary to carry outsome internal adjustments in the monitoring application, necessary for furthertypes of graphic outputs, which we wish to apply during the followingperiod.For a detailed description of the new version of this application, see TechnicalReport No. 11/2002.The main features of the monitoring application consist of the following:• Possibility of parallel application of more accounting plans for their comparisonor for the comparison of possible locations of gateways to PSTN.114 High-speed National Research Network and its New Applications 2002