I came across this problem 2 days ago and I found no solutions...
Is there a way to fix this ? I tried resetting smart calls and phone app but still nothing.
I'm on a SN960U1
Looking at this thread eu.community.samsung.com/t5/galaxy-s10e-s10-s10-s10-5g/caller-id-and-spam-protection that option maybe Region or Network dependant.
There are some more threads via a forum search or Google Search @AsFack
I wish you all the best with this.
Current Phone ~
Samsung Note 20 Ultra 5G SM-N9860_256Gb SnapDragon 865+
Samsung One Ui 3.1/ Android 11.
That thread doesn't show a real solution working for every user... It seems that we have this Spam protection greyed out due to country and region restrictions... I bough my phone from the US and I am using it from Latin America... It seems that's a problem that Samsung hasn't taken care of...