I have not changed any DAHDI Configuration beyond the group settings that arielgrin suggested. I have not modified the Global Settings, System Settings, etc. in any way.
I downloaded and compared ‘/etc/dahdi’ from both FreePBX 13 and 14. ‘system.conf’, ‘init.conf’, and ‘modules’ are identical.
The trunk configuration is almost default, except that I configured a CallerID:
If I add a second trunk, the listed channels/groups are identical.
Maybe tonight I will try to install a VM with FreePBX Distro 13, to see if it is any different from AsteriskNow FreePBX 13 …