Private Integrated Services Network (PISN); Inter-exchange signalling protocol; Circuit-mode basic services [ISO/IEC 11572 (1994) modified]
NORM herausgegeben am 15.11.1995
Designation standards: ETSI ETS 300172-ed.3
Publication date standards: 15.11.1995
The number of pages: 29
Approximate weight : 87 g (0.19 lbs)
Country: European technical standard
Kategorie: Technische Normen ETSI