Why do withheld and private calls go straight to voicemail

[Android Central Question]

Withheld and private calls go straight to voicemail and my phone has not rung.
I have samsung A8

 

[mustang7757]

You use DND(Do Not Disturb)?
Any spam filter/robo call filter apps ?

I'll leave a Link to register so you can communicate here, As a guest account you can only post questions but can't reply
https://forums.androidcentral.com/showthread.php?t=409154