IBM remote support via the STRRMTSPT gives IBM several options to automatically transfer data in a form that fits their tools for analysys of faults in your machine.
Using a modem !!!! – your system should have a connection via a highspeed line (over the Internet), for the electronic suppor program (high speed download of ptf’s a.o. runs perfect using this kind of line).
By the way: IBM configures this connection for free (at least in my country).