The TTGO T-PCIE SIM7000G is an expansion module that can be mounted via the PCIe slot on a TTGO T-PCIE. The module is controlled via AT commands. The full list of AT commands can be found under the tab "Downloads".
The default settings for CNMP and CMNB may not be optimal for 2G. With other settings for CNMP (13, preferred for GSM) and CMNB (3, CAT-M + NB-IoT) it will probably be a lot faster. You can use the following AT commands during the initialization of the GSM module:
AT+CMNB=3
AT+CNMP=13
Please note that the setting AT+CNMP=13 ensures that the SIM7000G can only connect to GSM networks.
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