Integrated Services Digital Network (ISDN); Signalling System No.7 (SS7); Digital cellular telecommunications system (Phase 2); Application of ISDN User Part (ISUP) version 2 for the ISDN-Public Land Mobile Network (PLMN) signalling interface; Part 1: Protocol specification (GSM 09.12 version 4.2.2) (Endorsed by AENOR in November of 2008.)
STANDARD published on 1.11.2008
Designation standards: UNE-EN 300646-1V4.2.2
Publication date standards: 1.11.2008
Approximate weight : 300 g (0.66 lbs)
Country: Spanish technical standard
Category: Technical standards UNE