Private Integrated Services Network (PISN);Specification
, functional model and information flows;Private User Mobility (PUM);Call handling Additional Network Features (ANFs) [ISO/IEC 17877 (2000) modified] (Endorsed by Asociación Española de Normalización in December of 2021.)
Private Integrated Services Network (PISN);Specification, functional model and information flows;Private User Mobility (PUM);Call handling Additional Network Features (ANFs) [ISO/IEC 17877 (2000) modified] (Endorsed by Asociación Española de Normalización in December of 2021.)
