[pasc1878]

This will cause problems with many things.

Delivery Drivers/taxis use their own phones to tell you if their arrival times will change.

Medical calls can come from personal phones.

[DirkH]

Delivery drivers/taxis just text me when calling fails. The upsides far outweigh the downsides of blocking all calls not in my contacts. Humans and institutions adapt to new normals. Some just slower than others.

[pasc1878]

Mine don't they just phone.

[tokai]

Will cause? We are a lot of people doing that right now, and its working fine,

[pasc1878]

Not for me - I have just had to turn the block off.