On: Ask HN: How do I make sure my non-technical parents are safe online?

[NotSammyHagar]

There are some phone numbers where you have to pay to call them, and so there is a current scam where you call people just to get them to call you back, and you'll have to pay.

[lcabral → NotSammyHagar]

I think he meant the mother would lookup the actual phone number in the yellow pages and call that number.