Is there any software on Android that can blacklist unwanted numbers without prompting for calls or text messages?

Almost all kinds of mobile phone guards have this blacklist and harassment shielding function.

But the shielding effect is not very good, after all, it is not system-level.

You can only choose whether to block it after receiving the call.

In this way, the number in the blacklist kept ringing and vibrating until it was blocked.

At present, it is found that jinshanwei can be perfectly shielded on android 2.3 system. * and does not require root privileges.

However, on android 5.0. 1, jinshanwei is invalid without root permission.

Now the most effective anti-harassment function is the system-level anti-harassment function on miui.

There is no sound or vibration prompt in the first second when a stranger calls or messages, which gives the anti-harassment function time to identify.