System Setup and Administration Standard 3.062 Nortel TDM RecorderHardware components consist of the following: PSTN (Central Office Switch) PBX (Organization's Switch) Agent Telephones CTI Server Unify Server Recorder (see below for details)The Recorder consists of the following software components: Capture Engine Workflow Component Consolidator Calls Database Media Database Viewer Retriever ArchiveCentral officeThe central office represents the public switched telephone network (PSTN)where telephone calls originate. The PSTN switch communicates with thePBX in such a way that calls are routed according to the setup of the PBX.The PSTN is connected to the PBX by a T1 or E1 line.