How to improve the blacklisted

Hello meizu player!

I have a question about blacklisted because when i blacklisted a number, and when this number call me he got the first tone and after that its shut the call.
I dont like that kind of shut is there a possible that the number i blacklisted call me but dont get any tone only mute.

then he cannot tell me that i blacklisted him but he can think about problem of phone like this because the one we have is not so good.
Many people know that we blacklisted them.

So is there any idea for changing the blacklisted to move on mute without tone.??

Also why we cannot blacklisted our contact directly?
We have to type the number .... is it not more easy to add a button on the contact and when we want to block this number we have only to activate or desactivate because the one we need to do is annoying

just add that number to your contacts and later set ringtone to silent for that contact cant be sure about this, cuz my meizu is currently sent out for relpacement

What firmware are you using? I am using the new UI leaks, and you can directly blacklist a contact. Go to the contact's details and then click on the grouping (should be just below the existing phone number). There should be the blacklist group option. Just add the contact to that group. But you probably will still end up with one ring before rejecting call. I have never tried it, so I don't know.