What is this code ? at+qfastbate0 on EG-25 module

at+qfastbate0 appeared on my console.
I cannot find any reference, what’s that?

I guess my console had some problems and mixed ATE0 with the preceding instructions, yet, those have no reference whatsoever.

Even AT+QF alone gives zero results anywhere.

What are those used for ? What’s actually going on ? Do the modems ship with secret codes which have no reference or what ?

Hi
Please provide a complete screenshot and log, the information you currently provide cannot answer your question
Best wishes