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
I see the error of forgetting the long distance prefix and dialling some poor innocent to squeal tones in xyr ear during Zone Mail Hour is alive and well. (-:
+++ ATH0
This brings back memories of hanging my 56k modem up with a specially crafted ping command :)
ATDT2024561414