It’s also used to offer cheap sms service to shady aggregators or mobile network operators.
These phones will have a free sms subscription and they send incoming otp SMS s through to end users for say half the normal price of an otp SMS. 100% profit.
Interesting though as you say, also shady. Also seems marginal. Sending enough SMS to recover the monthly cost of the SIM cards seems likely to get the carriers’ attention after a while. Outbound SMS from Twilio are around 0.8 cents each in the US fwiw. Much less hassle. Maybe even less from carriers. No idea about EU.
It’s also used to offer cheap sms service to shady aggregators or mobile network operators. These phones will have a free sms subscription and they send incoming otp SMS s through to end users for say half the normal price of an otp SMS. 100% profit.
Interesting though as you say, also shady. Also seems marginal. Sending enough SMS to recover the monthly cost of the SIM cards seems likely to get the carriers’ attention after a while. Outbound SMS from Twilio are around 0.8 cents each in the US fwiw. Much less hassle. Maybe even less from carriers. No idea about EU.