https://www.freedesktop.org/software/ModemManager/man/latest/mmcli.1.html

-L, –list-modems 列出所有可用的模块

mmcli -L
    /org/freedesktop/ModemManager1/Modem/0 [QUALCOMM INCORPORATED] QUECTEL Mobile Broadband Module

查看4G/5G模块信息

mmcli -m /org/freedesktop/ModemManager1/Modem/0
  -----------------------------------
  General  |                    path: /org/freedesktop/ModemManager1/Modem/0
           |               device id: 176df711bb462.......9f0c
  -----------------------------------
  Hardware |            manufacturer: QUALCOMM INCORPORATED
           |                   model: QUECTEL Mobile Broadband Module
           |       firmware revision: EC20CEFAGR06A10M4G
           |          carrier config: OpenMkt-Commercial-CU
           | carrier config revision: 05011510
           |            h/w revision: 10000
           |               supported: gsm-umts, lte
           |                          cdma-evdo, lte
           |                          lte
           |                          cdma-evdo, gsm-umts, lte
           |                 current: lte
           |            equipment id: 352...818
  -----------------------------------
  System   |                  device: /sys/devices/pci0000:00/0000:00:14.0/usb1/1-4
           |                 drivers: qmi_wwan, option
           |                  plugin: quectel
           |            primary port: cdc-wdm3
           |                   ports: cdc-wdm3 (qmi), ttyUSB0 (qcdm), ttyUSB1 (gps), 
           |                          ttyUSB2 (at), ttyUSB3 (at), wwan0 (net)
  -----------------------------------
  Status   |                    lock: sim-pin2
           |          unlock retries: sim-pin (3), sim-puk (10), sim-pin2 (3), sim-puk2 (10)
           |                   state: registered
           |             power state: on
           |             access tech: lte
           |          signal quality: 81% (cached)
 -----------------------------------
  Modes    |               supported: allowed: 4g; preferred: none
           |                 current: allowed: 4g; preferred: none
  -----------------------------------
  Bands    |               supported: egsm, dcs, utran-1, utran-8, eutran-1, eutran-3, eutran-5, 
           |                          eutran-8, eutran-34, eutran-38, eutran-39, eutran-40, eutran-41, 
           |                          cdma-bc0
           |                 current: egsm, dcs, utran-1, utran-8, eutran-1, eutran-3, eutran-5, 
           |                          eutran-8, eutran-34, eutran-38, eutran-39, eutran-40, eutran-41, 
           |                          cdma-bc0

https://ten64doc.traverse.com.au/applications/cellular/