What is a mobile phone firewall? How to set it up

Mobile phone firewall is a commonly used smart phone software, which can reject incoming calls and text messages in the blacklist.

The principle of mobile phone incoming call firewall is that the target mobile phone queries the blacklist list to decide whether to hang up or ring after receiving the signal notification, that is, the original manual hanging up, that is, automatic hanging up, so people on the blacklist display a busy tone when calling, but it is not a busy tone after one or two rings.

How to set up a mobile phone firewall:

1, open the mobile phone contact;

2. Open the contact to be blacklisted;

3. Join the blacklist.

Extended data

Advantages of mobile phone firewall:

1, the firewall can strengthen the security policy.

2. Firewall can effectively record the activities on the Internet. As the only access point, the firewall can record between the protected network and the external network.

3. Firewalls limit the exposure of user points, and can prevent problems affecting a certain network segment from spreading to the whole network.

4. Firewall is a checkpoint of security policy, which prevents suspicious access.

Baidu encyclopedia-mobile phone firewall