Check for network outages. Use a site like Downdetector to see if your provider is having local issues.
I believe you're referring to the well-known Android security paper: unblock outgoing calls
: Try toggling Airplane Mode on and off. If that fails, re-seat your physical SIM card or contact your carrier to refresh your eSIM profile. 4. Third-Party App Interference Check for network outages
If you meant a with a similar name (e.g., VoIP, network‑level call blocking), just let me know. If that fails, re-seat your physical SIM card
Reset Network Settings: This is a powerful fix for software bugs. Go to Settings > System > Reset > Reset Network Settings. This will clear saved Wi-Fi passwords and Bluetooth pairings but often fixes cellular handshake issues. Physical Hardware and SIM Troubleshooting If the software looks clear, the problem might be physical.
: Go to Settings > Phone > Show My Caller ID . If this is toggled off, some carriers or recipients may block your calls. Ensure it is turned On .