ota

What does it mean that cell phone texts are "encrypted in the air"?

The actual term for the method through which SMS, or text, messages are sent is “Over the Air,” or OTA. OTA is the standard for the transmission and reception of application-related information in the wireless information system. You can send text messages and graphics via OTA, but other information like subscription activation and software updates can be sent this way, too.

U.S.
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