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AT » History » Version 1

Denis 'GNUtoo' Carikli, 02/15/2020 01:25 AM
Move from OtherModemProtocols

1 1 Denis 'GNUtoo' Carikli
h2. AT
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The AT protocol comes from the "Hayes command set":https://en.wikipedia.org/wiki/Hayes_command_set used in early Internet modems.
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It has been standardized by various standard bodies like the ITU, which then handed it over to the 3GPP. It's now the 27.007 standard at the 3GPP.
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In practice device manufacturers often don't respect the standard, and instead do custom changes.
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However as their implementation is still based on the standard it's still relatively easy to adapt the userspace modem stack to various modem from various manufacturers.