Commands are always logged and you can find them in logread.
You can see them in console with command "logread".
To filter only messages containing "AT" in it, use logread | grep AT, this will filter the messages so only the ones with AT word in it will be found.
Also, for better search and analysis, you can use troubleshooting tools:
Here you will be able to download full troubleshoot file of your RUT955 or download just the log itself, this way you will be able to see what's going on in there without new popping messages.