Call recording module

The new call recording module for 2.10 is ideal for one of our clients requirements.

However they are on a large production system running 2.9 and we are very reluctant to upgrade to 2.10 in case things break

Is there any backported module for 2.9 that we can install??
Or would call recording module work on a 2.9 panel if we just uploaded it?

No it would not work on 2.9 and their is no backport. It needs all the changes in core for it to work