September 2007 Setting up Specific Recorder ComponentsSystem Infrastructure Guide 145Retriever architectureThe Retrieval architecture in Nortel TDM Recorder uses HTTP retrievalprotocol for the Search and Replay (Viewer) application to communicatewith Enterprise Archive and the Recorder. Viewer reads from the databaseand from the Java Retriever, which reads the local disk buffer as well asarchive storage. This is shown in the following diagram:Retriever ArchitectureRecorderServerRetrieverDatabaseHTTPFile SystemInterfaceArchivalStorageRetrieval ScenarioCall Buffer(InternalDisk Drive)System Administratoror Supervisor WorkstationViewerODBCMSTapeAPITomcatWebServer
