Private Integrated Services Network (PISN); Specification, functional model and information flows; Advice of charge supplementary services [ISO/IEC 15049 (1997) modified]
NORMA vydaná dňa 16.6.2003
Designation standards: ETSI EN 301254-V1.2.1
Publication date standards: 16.6.2003
The number of pages: 5
Approximate weight : 15 g (0.03 lbs)
Country: European technical standard
Kategória: Technické normy ETSI