I have a CME system with one 7961+7914 module, on the 7914 i try to configure the button's in such way that they directly connect to an FXO port.
This actually works with the trunk command on a ephone-dn, it will give a dial tone and users are able to dial this way.
But whenever you browse trough the list of previous dialed numbers, select one and click one of the line-buttons on the 7914, you will get a re-order tone, i guess this is because it will mix up the numbers in the trunk command and the actual to dial numbers.
The current configuration for this is :
dial-peer voice 3 pots
ephone-dn 120 dual-line
label Line 1
trunk 800 monitor-port 0/3/0
Any help would be great!