This should work with Quectel modules such as EC20, EC21, EC25, EG9x and Simcom sim7600 and possibly other models with voice over USB capability. Tested with the EC25-E mini-pcie module and Waveshare ...
Category Other Hardware T-SIM7600 Series-ESP32 PN Number S2-107EQ-Z30LC Firmware Version Manufacturer: SIMCOM INCORPORATED Model: SIMCOM SIM7600E-H Revision: LE11B14SIM7600M22 SIM7600M22_B14V01 210 ...