Asterisk with IAXModem and Hylafax?

I’m trying to set up Asterisk and IAXModem to send faxes via T38 (Yes,
I know I’m swatting a fly with a Buick…) However, since I’m trying
to do something so small with a product so large, I’m having trouble
finding samples or how-tos that show me how to set this up.

I’ve got all three installed, and I THINK I have my IAXModem config
correct. I’m pretty sure that I have Hylafax correct (I’ve used it
with T38Modem) so, I need to know which of the Asterisk samples I need
to use, and how to use them.

I think I want to use some combination of iax.conf, iaxprov.conf,
sip.conf and sip_notify.conf. But I’m not sure where to put them, or
what to change…

I’m sure that the answer is RTFM, but I’m not sure WHICH M, or where
in it to R…

thanks.