CAPI + Asterisk + Faxing > Used to be easier to find docs

Greetings Users,
Is it just me or is it harder to find CAPI faxing instructions for asterisk?
I set up a box about 12 months ago for a partner and just last month install a new system in it’s place. I didn’t realise that faxing was going through the * box and now need to get it working.
If anyone can point me to the right places, I’d really appreciate that.

the chan-capi documentation seems to have pretty much everything in it…I shouldn’t have been so hasty!