Private Integrated Services Network (PISN); Inter-exchange signalling protocol; Circuit-mode basic services [ISO/IEC 11572 (1996) modified] (Endorsed by AENOR in November of 2003.)
NORMA vydaná dňa 1.11.2003
Designation standards: UNE-EN 300172V1.4.1
Publication date standards: 1.11.2003
Approximate weight : 300 g (0.66 lbs)
Country: Spanish technical standard
Kategória: Technické normy UNE