ÖNORM EN 302646-1 V 7.0.2:2000-12
Действует
Integrated Services Digital Network (ISDN) - Signalling System No. 7 - Digital cellular telecommunications system (Phase 2+) - Application of ISDN User Part (ISUP) version 3 for the ISDN-Public Land Mobile Network (PLMN) signalling interface - Part 1: Protocol specification (GSM 09.14 version 7.0.2 Release 1998)
