| Symptom | Likely Cause | |---------|---------------| | Outgoing calls fail instantly with "Call Barring On" | Barring of All Outgoing or International | | Incoming calls go straight to voicemail without ringing | Barring of All Incoming or When Roaming | | Specific numbers (e.g., 1-900) fail; others work | Barring of Specific Numbers (handset-level) | | "Network or SIM card error" | Incorrect barring password or carrier restriction |
Removing call barring requires understanding its four layers: , Network (GSM) codes , Carrier account controls , and SIM restrictions . Layer 1: The Quick Diagnostic – Is It Really Call Barring? Before diving into removal, confirm the symptom. Call barring produces distinct behaviors: how to remove call barring
Try dialing your own number from another phone. If it rings on your end (but you can't answer?), that is not barring—that's a proximity/ringer issue. Barring rejects at the network level. Layer 2: The Universal GSM Codes (Most Common Removal Method) The GSM standard defines a set of Universal Unstructured Supplementary Service Data (USSD) codes. These work on any phone, any carrier (provided the carrier hasn't disabled them) without needing to navigate menus. The Master Deactivation Code: ##002# The single most effective command is: | Symptom | Likely Cause | |---------|---------------| |
Erases all call barring settings of every type (outgoing, incoming, international, roaming) and resets them to "off". It also deactivates call forwarding and conditional diversions in one go. Call barring produces distinct behaviors: Try dialing your
##002# Press call/SEND.
Introduction: What is Call Barring? Call barring is a network-level feature (governed by the GSM/3GPP standards) that allows a user to restrict specific types of outgoing or incoming calls. Unlike Do Not Disturb (which silences your device locally), call barring is enforced by your mobile carrier’s switch. When active, the network rejects the call before it ever reaches your phone—or before your phone can initiate a connection.
| Barring Type | Deactivation Code | |--------------|-------------------| | All Outgoing Calls | #33*PIN# (or #33# if no PIN) | | All Incoming Calls | #35*PIN# | | Outgoing International (except home country) | #331*PIN# | | Outgoing International (all) | #332*PIN# | | Incoming When Roaming | #351*PIN# | | Barring of All Services (Airplane mode enforced by network) | #330*PIN# |