ETSI TS 101 818-3
ETSI TS 101 818-3
Integrated Services Digital Network (ISDN); Digital Subscriber Signalling System No. one (DSS1) protocol; Trunk Hunting (TH) supplementary service; Part 3: Test Suite Structure and Test Purposes (TSS&TP) specification for the user
standard published 07/01/2001 by European Telecommunications Standards Institute
