You can manage these restrictions directly from your phone's dialer. Follow these steps for the Samsung S9 (Android 8.0 or later):
: Tap the green phone icon on your home screen. samsung s9 remove call barring o2 uk
Call Barring is a network-level feature (controlled by O2, not just your phone) that blocks certain types of outgoing or incoming calls. Here’s how to disable it on your S9, step by step. You can manage these restrictions directly from your