data flowdata flow diagramdata formatdata gandling capacitydata inputdata itemdata linkdata link layerdata loggingdata minipacketdata outputdata pathdata processingdata processing centerdata processing computerdata processordata receptiondata recordingdata setdata set readydata signaling ratedata sourcedata switching exchangedata terminal equipmentdata terminal redydata tone multiple frequnencydata transferdata transmission systemdata transmitterdata typesdata under voicedatabase management programdatagramdatagram servicedatumdatum linedatum nodedaylightdbdb meterdbcdbfdbidbkdbmodbmopdbmpdbpdbrndbrnc
