Free/ Open Source alternative tool to capture signalling and data details logs for debugging purpose?

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?

I also would like to know if there is open source SW like QXDM.

And for paid version, which one is better QXDM or XCAT or TEMS for SRVCC collection and analysis?

QXDM is not open source at all. It is very expensive to be true. :frowning:

QXDM is a proprietary Software from Qualcomm.

Personally, I find a combination of QXDM and QCAT better than any other tools for log analysis.

Thanks.
Any open source tools anyone knows? :wink: