Integrated Services Digital Network (ISDN) - Public Switched Telephone Network (PSTN) - Premium Rate (PRM) service; service description.
STANDARD published on 1.12.1997
Designation standards: DIN ETS 300712:1997-12
Publication date standards: 1.12.1997
The number of pages: 25
Approximate weight : 75 g (0.17 lbs)
Country: German technical standard
Category: Technical standards DIN
Diensteintegrierendes Digitalnetz (ISDN) - Öffentliches Fernsprechwählnetz (PSTN) - Mehrwertdienst mit besonderer Kennzahl und besonderem Entgelt; Dienstbeschreibung.