silent call

[idea]

Hello, sorry, my English is weak and I hope you understand what I mean. I have the idea that in the future eternities of the user's mobile phone, the user will be able to silence specific phone contacts. I really like this idea because no mobile phone currently has this feature, or vice versa, for example, if I silence everyone, only a few people ring the phone.

If this idea works well, please give me a new version of the phone because I really can't afford your new phone and I'm very upset.