POTS setup on FXS ports

Here is just a basic setup where the two routers have FXS ports with regular analog telephones sitting on them. The two routers are connected via some kind of ethernet link, and share IP addresses on the same subnet. Here is the visio with embedded configs:

Also just some basic "show" commands to post here:
show voice port summary
show dial-peer voice summary
debug voip dial-peer

....noted