How to back up call log on PC

[PMPM]

I use iphone 6. I want to have my call log backed up on my PC. From my search, I only found that are paid. Is there any way to do it free?

(Just to be clear, I don't want to just to export my log but have a ongoing back up.)

Thanks in advance!

 

[John Yester]

Why don't you back up just using iCloud back up or iTunes? It will contain a back up of what you are looking for.