I have a remote ISR with a POTS line connected to an FXO port which is not picking up. A tech dispatched, unplugged the POTS from the FXO port and tested it good both ways with a butt set. However, once it's plugged back in I just get RNA and it shows idle when calling the DID #.
The configs are pretty basic:
input gain 10
connection plar 4800
caller-id enable type 1
I've also tried to manually set the signalling to groundstart from the default loopstart (which it should be). I wasn't working the issue while the tech was onsite so I wasn't able to get him to move the POTS to another FXO port to rule out a faulty port. ...but how probable is that.