| Заглавие на английском языке | Private Integrated Services Network (PISN) - Inter-exchange signalling protocol; Call completion supplementary service for the VPN "b" service entry point - Part 2: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma (Endorsement of the English version EN 301452-1 V 1.3.1 (2000-12) as German Standard) |