Wow! Thanks WhyADuck.
'Misc Destinations', who knew!!!
To the best of my knowledge, I have never seen 'Misc Destinations' in any of the 30+ articles on PIAF that I have bookmarked and read. I have been trying to set this up for over two weeks.
There are many tutorials about setting up Google Voice & calling using a softphone to an extension so that was pretty easy to get working; using a POTS line in & an IVR to DISA to call out using GV was more difficult, and, I am still unclear of how that works but it does. I can even dial in from a POTS line to a voip.ms phone number to a IVR to a DISA and get a dial-tone on GV to make outbound calls but I don't completely understand that either.
Being able to do something and understanding what you are doing, are two different things.
I feel that I lack a fundamental understanding of a PBX and all the 'gizmos', for lack of a better word, that appear in the PIAF menus.
Maybe, I am just 'dense'.
Anyway, thanks again for providing me with another piece of the puzzle.