ETSI EN 301 366 English Printed Edition English PDF Universal Personal Telecommunication (UPT); UPT phase 2; Functional specification of the interface of a UPT Integrated Circuit Card (ICC) and Card Accepting Devices (CADs); UPT card accepting Dual Tone Multiple Frequency (DTMF) device; Conformance test specification

standard published 05/01/1999 by European Telecommunications Standards Institute