The File Transfer, Access and Management (FTAM) is a protocol designed by the International Organization for Standardization (ISO) for remote file manipulation. FTAM is sometimes used to download billing data over X.25 from telephone switches, such as the Siemens EWSD, Ericsson AXE and Alcatel S12 switches. Advanced Relay's implementation conforms to the FTAM specification as described in ISO 8571: 1988 (E).
Advanced Relay has ported its FTAM implementation to run on the PXS. For this application, the PXS is directly connected to a telephone switch as a front-end processor. Using X.25 virtual circuits, it downloads billing records from the switch and forwards them to a remote file server over TCP/IP where the records are written to disk. All of the details related to X.25 and the FTAM protocol are handled inside the PXS. During operation, the PXS logs its activities to a remote log server.