@kyle95wm makes a good point about not being able to remember which image he used on his pi.It's running the latest image from March (I think) with Asterisk 13.12.2
I had read a different post about problems with the 'incrediblefax13_raspi3.sh' script; So I tried, now that there are 2 candidates, to check which image version I had used on my pi3. That info (the image used) however seems to be no longer available as I had done a an 'rm' of the image that had been used and its no longer saved by Wheezy on my previously used pi SDXC card which is currently mounted in a USB reader.
So should the image version date or ID or something be saved in future image releases. If that is too recursive ; then should the install instructions create a record of image used and before it gets 'rm'd?