I'm not sure if it's possible with UPI but I know in Kenya many people will get a second, cheaper phone to use for m-pesa (mobile money), I think partially so the battery doesn't die on it but it could also reduce the types of calls you're talking about, or at least make it obvious that someone is calling your mobile money number.
Is that possible with UPI? Or even a dual sim? I'm not sure if the account is tied to the person or the number.
Is that possible with UPI? Or even a dual sim? I'm not sure if the account is tied to the person or the number.