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AT CMD's
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Hayes Modems
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Hayes Microcomputer Products - Wikipedia
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NaBloPoMo - Modems - Lord Kalvan's blog
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GitHub - maccasoft/EtherModem: Hayes modem emulation for Arduino / Ethernet modules
![PDF] The AT + i Protocol : An extension of the Hayes AT command set for embedded Internet connectivity | Semantic Scholar](https://d3i71xaburhd42.cloudfront.net/5e0bb8f2ab5436970d857d79f275ede8d4dfcbcc/2-Figure1-1.png "PDF] The AT + i Protocol : An extension of the Hayes AT command set for embedded Internet connectivity | Semantic Scholar")
PDF] The AT + i Protocol : An extension of the Hayes AT command set for embedded Internet connectivity | Semantic Scholar
Hayes protocol for MORSE | RACOM
All You Wanted To Know About AT And GSM AT Commands
PA Storage Monitor Documentation - Phone Dialer (DTMF/SMS)
Hayes Chronograph - Atari 8-Bit Computers - AtariAge Forums
Hayes Command Set History: The Tech That Dialed In a Million Modems
Hayes Modem AT Strings and Commands
Hayes compatible modem: What it means - Silicon Underground
