No phone call audio, logs posted, modem can't init audio?

[biketool]

Tried getting some information from alsamixer
all that is shown is sysdefault0 even when I make a phone call that is all I see
I will have to find my pinephone as I don't see any of the over 100 audio devices I remember being found in the modem, this is just the rockchip chipset audio.

Code:

f your EG25-GL 4G HAT connects to the Raspberry Pi only via USB and GPIO, you’ll need to enable the correct audio path before hearing anything during a call. By default, the modem doesn’t send voice over USB. Use minicom and run AT+QDAI=4,0,0,1,0 to route audio through the USB interface, then reboot with AT+CFUN=1,1. After that, check with arecord -l or aplay -l — you should see a “Quectel USB Audio” device.

If you’re instead using the analog audio pins (MIC_P/N and SPK_P/N) on the HAT, change the setting to AT+QDAI=0,0,0,1,0. This routes voice through the hardware pins for external mic and speaker use. Remember that the Raspberry Pi’s 3.5 mm jack doesn’t carry the modem’s voice — audio must come from either USB or those analog pins.

Also make sure the USB audio driver is loaded with sudo modprobe snd_usb_audio if it’s missing. Once configured correctly, voice calls via ATD+<number>; will produce audio through your selected interface.

My next try will be to probe the USB audio using AT commands to the modem https://pine64.org/documentation/PinePhone/Modem/
this is the same modem as our phones but on a PCB for R-pi boards
hopefully it is more documented in that form and I will continue to investigate.
https://wiki.seeedstudio.com/getting_sta...g_lte_hat/