Private Integrated Services Network (PISN); Inter-exchange signalling protocol; Private User Mobility (PUM); Registration supplementary service [ISO/IEC 17876 (2003), modified]
STANDARD published on 1.7.2004
Designation standards: STN EN 301821-V1.2.1
Classification mark: 871821
Catalog number: 95771
Publication date standards: 1.7.2004
The number of pages: 75
Approximate weight : 225 g (0.50 lbs)
Country: Slovak technical standard
Category: Technical standards STN