Most major carriers (Verizon, T-Mobile, AT&T, Vodafone, Jio, etc.) let you manage call barring through their account portal.
If the code #330*0000# says "Network Error" or "Invalid Password," try this: how do i turn off call barring
After trying the steps above:
Call barring is a network-level feature that lets you restrict specific types of incoming or outgoing calls. Whether you accidentally turned it on or a default carrier setting is blocking your international reach, disabling it usually requires just a few taps in your settings or a simple GSM code . 1. Turning Off Call Barring on Android Most major carriers (Verizon, T-Mobile, AT&T, Vodafone, Jio,
MMI codes work on virtually any mobile phone—smartphone or dumbphone. These are the most reliable fallback. Most major carriers (Verizon
