Comment by acheron
In this house, we believe “AT protocol” refers to Hayes modem commands.
ATDT2024561414
In this house, we believe “AT protocol” refers to Hayes modem commands.
ATDT2024561414
This brings back memories of hanging my 56k modem up with a specially crafted ping command :)
A slightly more modern usage for cell modems that still implement AT commands in 2025:
AT+QSINR?
AT+QRSRQ
AT+QRSRP
AT+QNWINFO
-- getting current status/band of a link