When call barring is active, the phone cannot make or receive the restricted types of calls. The person attempting the call will usually hear a recorded message stating that the call cannot be connected or that the number is restricted.
Call Barring is a network-level feature that lets you restrict broad categories of incoming or outgoing calls. Because it happens at the network level rather than just on your handset, these settings are tied to your SIM card—meaning they stay active even if you switch phones or do a factory reset. YouTube +3 The 4 Most Common Types Think of call barring as a set of digital filters you can toggle on or off based on your current needs: All Outgoing Calls: This "blackout" mode prevents any calls from leaving your device, which is a popular choice for parents or businesses managing shared devices. International Outgoing Calls: A lifesaver for your wallet, this prevents the phone from dialing numbers outside your home country, stopping accidental high-cost calls. International Calls Except Home: Perfect for world travelers. This blocks all foreign calls except those back to your home country, so you can still check in with family. Incoming Calls While Roaming: If you’re abroad and don't want to be charged for every incoming "Hey, are you free?" call, this bars all incoming traffic until you're back on your home network. Vi +5 Why Use It? (Beyond Just Privacy) While the main draw is often peace and quiet, call barring is actually a powerful financial and security tool: Prevent "Bill Shock": Stop unauthorized international or premium-rate calls before they cost you hundreds. Control Business Usage: Companies use it to ensure work phones are strictly used for regional or national business. Enhanced Focus: If you're in a critical meeting or on vacation, barring all incoming calls guarantees zero interruptions without having to turn your phone completely off. Vi +3 How to Turn It On (The PIN Secret) To set this up, you usually need to dive into your phone's "Supplementary Services" or "Calling Accounts" menu. realme.com +1 One critical detail: You will almost always be asked for a 4-digit what is barring call