Nostalgic Journey: Hayes-Compatible Modems and AT Commands

Dimitris Moutsatsos
2 min readApr 18

This post is dedicated to those who remember the days of using Hayes-compatible modems to connect to the internet. Back then, we relied on serial communication applications like HyperTerminal or Minicom to configure our modems. The AT+MS command was used to set the modulation scheme and connection speed, while the ATDT or ATDP command dialed our ISPs.

My favorite modem was US Robotics 56K

U.S. Robotics 56K Message Modem