Published
This European Telecommunication Standard (ETS) describes the supplementary services belonging to the group CALL RESTRICTION SUPPLEMENTARY SERVICES. The general aspects - including definitions and recommended provision - of the description of the GSM supplementary services are given in GSM 02.04. The Call Restriction supplementary services allow the possibility for a mobile subscriber to have barring of certain categories of outgoing or incoming calls at her access.
PUBLISHED
SSH ETS 300 520:1996 ed.2
60.60
Standard published
Oct 20, 2025