ETSI TS 101 818-4

Integrated Services Digital Network (ISDN); Digital Subscriber Signalling System No. one (DSS1) protocol; Trunk Hunting (TH) supplementary service; Part 4: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification for the user Edition: 1.1.1
European Telecommunications Standards Institute / 01-Nov-2001 / 21 pages