Hayes AT command set - Wikipedia
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en.wikipedia.org
jnbf9kiftxvh06cVJZttlleVq76KHQ8P/deCghTiLh4=
Feb 19
The Hayes command set, also known as the AT command set, is a command language developed in 1981 for the Hayes Smartmodem, initially designed for 300 bit/s modems. It consists of short text strings th