Pay-by-phone transactions let you buy digital goods or services quickly by...

https://brookssnewinsight.scriblorax.com/posts/how-to-compare-apple-pay-google-pay-and-carrier-billing-for-checkout-speed

Pay-by-phone transactions let you buy digital goods or services quickly by charging the amount directly to your monthly phone bill or prepaid credit. It’s a simple way to pay without entering card details, especially handy on mobile devices