Hello ModemManager community, I am looking for a way to disable VoLTE on my modem using ModemManager. I’m running on a custom Yocto-based embedded device and using a data-only SIM to establish cellular connections. My setup details are as follows:
*Modem Model/Chipset*: Cinterion PLS83-W *Operating System/Distribution*: Latest Yocto version 5.2 *ModemManager Version*: 1.22.0 *QMI Tool Version*: 1.34.0 The modem is configured to use QMI I’m specifically trying to disable VoLTE either via ModemManager commands, QMI/MBIM tools, or through configuration. I haven’t found any direct documentation about this for my specific modem. Is there a recommended approach in ModemManager for disabling VoLTE, or do I need to rely on vendor-specific AT commands like: AT^SCFG="MEopMode/IMS" and AT+CEVDP (or something else)? Any insights or suggestions are greatly appreciated. Thank you for your help! Best regards, Renat Khalikov