
Universal Mobile Telecommunications System (UMTS); LTE; SIM/USIM internal and external interworking aspects (3GPP TR 31.900 version 19.0.0 Release 19)
NORMA vydána dne 16.10.2025
Designation standards: ETSI TR 131900-V19.0.0
Publication date standards: 16.10.2025
The number of pages: 42
Approximate weight : 126 g (0.28 lbs)
Country: European technical standard
Kategorie: Technické normy ETSI