What is the difference between GSM and GSM_compact as used in AT+CPOL

I am starting to use CPOL to exclude certain providers, and wonder how I might for example exclude 2G. It is not clear however how GSM and GSM_compact correspond.


Oh, you are great, the focus is very deep.
GSM_compact is simply a radio channel improvement technology that enhances voice and data transmission quality, so we don’t need to pay attention

1 Like