This prevents the user from making certain types of calls. Common variations include:
Call Barring is a feature of the GSM (Global System for Mobile Communications) standard—the technology backbone that powers most of the world's mobile networks. It uses specific (those weird asterisk-and-hash sequences like **21* ). what is a call barring
Why would someone use Call Barring today? This prevents the user from making certain types of calls
Call Barring isn't for everyday use. It is for the edge cases—the travel nightmare, the stolen phone panic, the absolute need for zero interruptions. the stolen phone panic