I thinkg QXDM is the best, and probably the most widely used tool in 3G/4G/5G technology to capture signalling and data details logs for debugging purpose (for Qualcomm based mobiles).
And it is largely used: Field/Lab testing, initial product development, MNO acceptance, etc…
The only begative side is that it is paid, and some of us are not able to afford.
So, my query is: Is there any free/opensource alternative capture signalling and data details logs for debugging purpose?