I'm using the Obi110 as an FXO gateway for an Asterisk/PiaF PBX (connected to POTS), and the audio fades in and out. It's almost as if it cuts off the first word or two of the caller's sentence. I've tried several different gain settings, but nothing seems to fix the problem.
In Physical Interfaces->LINE Port->Port Settings, I've got ChannelRxGain @ 9, but the rest of the values are default. This is a US line.
Any insights?