[request] feature to silence calls not in contacts

[spice42]

Checklist

• I made sure that there are no existing issues - open or closed - to which I could contribute my information.
• I made sure that there are no existing discussions - open or closed - to which I could contribute my information.
• I have read the FAQs inside the app (Menu -> About -> FAQs) and my problem isn't listed.
• I have taken the time to fill in all the required details. I understand that the bug report will be dismissed otherwise.
• This issue contains only one feature request.
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Feature description

the already existing feature to block calls not in contacts works well

I however wanted to request a feature similar, that silences calls not in contacts

this feature has been implemented in another open source app and I'd like to draw your attention to it
not in contacts phone rings instead of blocks

https://github.com/aj3423/SpamBlocker

https://github.com/Goodwy/Dialer

https://github.com/x13a/Silence

Why do you want this feature?

this helps when you don't want the caller to fwwl you have blocked their number, they just feel you are busy and have not pucked up the phone

it allows for us to make an excuse after looking at the number and calling back if the number is important

Additional information

where I have seen this feature in action

https://github.com/aj3423/SpamBlocker

https://github.com/Goodwy/Dialer

https://github.com/x13a/Silence

[spice42]

bump

[vertigo220]

Why not just use SpamBlocker?