I can see the usability aspect, but using an insecure protocol like SMS for something like payment sounds like an absolutely awful idea.
RCS might work as it's a bit more secure (and more importantly: doesn't have a 2G/3G compatible version that criminals might trivially abuse); it even has an optional money sending API in its protocol.
I can see the usability aspect, but using an insecure protocol like SMS for something like payment sounds like an absolutely awful idea.
RCS might work as it's a bit more secure (and more importantly: doesn't have a 2G/3G compatible version that criminals might trivially abuse); it even has an optional money sending API in its protocol.
People who are using upi over sms don't have a lot of money. Scamming them isn't worth the trouble.
There is UPI wallet (preload your wallet) that require no internet. But this still require a smartphone.
The SMS option is mainly to avoid requiring a smartphone. There is a huge population that do not have a smartphone.