Feature: Remove Call Barring on O2 – Regain Full Calling Control What Is Call Barring? Call barring is a network feature that lets you block specific types of outgoing or incoming calls (e.g., international calls, all outgoing calls, roaming calls). While useful for security or cost control, it can accidentally block essential communication. Why Remove Call Barring on O2?
You’re unable to make any calls except emergencies You keep getting “calls barred” or “network restriction” messages You’ve forgotten you enabled barring for international or premium calls A previous owner or administrator set barring on your O2 business line
How to Remove Call Barring on O2 (Step-by-Step) Method 1 – Using Phone Settings (Most Android/iOS devices)
Open Phone app → Menu (3 dots) → Settings Tap Calling accounts → Select your O2 SIM Tap Additional settings → Call Barring Select the barring type (e.g., “All outgoing calls”) → Enter the barring password (default for O2 is 0000 or 1234 – unless changed) Tap Disable or Turn off remove call barring o2
Method 2 – GSM Service Codes (Works on any phone) Dial these codes from your O2 SIM:
Remove all outgoing call barring: #33*0000# → press call Remove all incoming call barring: #35*0000# → press call Remove barring of international outgoing : #331*0000# Remove all barring at once: #330*0000#
Replace 0000 with your custom barring password if changed. Method 3 – Via O2 App or My O2 Web Feature: Remove Call Barring on O2 – Regain
Log into My O2 app or website Go to Manage my plan → Calls & texts → Call barring Toggle off any active barring rules Confirm with SMS verification code
Method 4 – Contact O2 Support
Call 202 from your O2 phone (free) or 0344 809 0222 Use live chat in the O2 app Visit an O2 store with photo ID Why Remove Call Barring on O2
Forgotten Your Barring Password? O2’s default barring code is usually 0000 or 1234 . If changed and forgotten:
Try 0000 first If that fails, O2 can reset it for you (may take 24h for security verification)