What is call barring?

Call barring is a feature offered by telecommunication service providers that allows users to block certain types of calls. It can be used to restrict incoming or outgoing calls to specific numbers, types of numbers (such as toll-free numbers or international numbers), or categories of numbers (such as premium rate numbers or mobile numbers).

Call barring is often used as a security measure to block unwanted or nuisance calls, or to limit phone usage for children or employees. It can also be used to prevent unauthorized access to certain numbers, such as blocking international calls on company phones.

Users can typically activate call barring by accessing their phone settings or calling their service provider. They can choose which types of calls to block and set up a PIN code to prevent unauthorized changes to the call barring settings.

It is important to note that call barring is a network-based service and may incur additional charges depending on the service provider and the specific features used. It may also not be available in all regions or for all phone plans.