One of the key features of Open-AT is that it allows you to add your own, custom AT Commands.
But are there any recommendations for syntax when adding new AT Commands?
Siemens use the “AT^S” prefix for their custom commands;
Ericsson used “AT*E”
Wavecom used “AT#” for their internet stuff
ITU-T V.250 (formerly V.25-ter) formalises the definition of AT Commands - it just says that all “AT+” prefixes are reserved (so Wavecom ignored that with AT+WIND, AT+WOPEN, etc…)
What do people here use