Audio Signal Mobile Payments
The audio channel of the cell phone is another wireless interface that is used to make mobile payments. Several companies have created technology to use the acoustic features of cell phones to support mobile payments and other applications that are not chip-based. The technologies Near sound data transfer (NSDT), Data Over Voice and NFC 2.0 produce audio signatures that the microphone of the cell phone can pick up to enable electronic transactions.
Read more about this topic: Mobile Payment
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