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Mobile phone - setting via SMS

In Germany, mobile operators often provide an easy way to set up their mobile phone for MMS and GPRS: after entering the phone number and model of the device on the carrier’s website, you get a “sms configuration” sent to you.

I am trying to understand how this works from a technical point of view. I looked at 3GPP TS 03.40 ( http://www.3gpp.org/ftp/Specs/html-info/0340.htm ) but could not find much. In addition, the fact that you need to provide a phone model indicates that this is a specific thing of the supplier and is not standardized?

Does anyone have pointers to me? I will also be interested in what the “Internet access” process looks like in other countries. Anyone want to share?

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They are called Over-The-Air (OTA) messages and really use SMS as a medium. More information; http://www.3gpp.org/ftp/tsg_SA/WG3_Security/TSGS3_30_Povoa/Docs/PDF/S3-030534.pdf

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Source: https://habr.com/ru/post/1736012/

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