This European Telecommunication Standard (ETS) provides a Conformance Test Specification (CTS) specifying the tests which are necessary to verify the conformance of advanced Dual Tone Multi Frequency (DTMF) devices and Authenticating Entities (AEs) with ETS 300 391-1 [1] and ETS 300 391-2 [2]. In particular, the following issues are considered: - test suite and test purposes; - test methods and configurations; - test steps and test cases.
PUBLISHED
SSH ETS 300 391-3:1995 ed.1
60.60
Standard published
Jun 19, 2026