modem manager

I have a SARA-R52M10 cellular modem attached to a Raspberry Pi CM4 running Ubuntu 24.04 on UART3: root@GATEWAY-0x00000028:~# ll /dev/ttyAMA3 crw-rw---- 1 root dialout 204, 67 Feb 25 01:21 /dev/ttyAMA3 I can get responses from it fine with screen /dev/ttyAMA3 115200 or by running...