I also have a
Hamilton ACW attached to the same phone line. It worked flawlessly the entire time I had problems with the
Etowah Valley meters. The reason though is pretty simple.
Your local phone company will not be able to find any noise on the line because their phone line is OK. My
Hamilton dials a local number for processing while the EV meters dial a long distance number. The local phone company came and tested your line from your demark point to their local switch. This will probably test fine, especially if your
Hamilton is running clean. The problem lies on the other side of the local switch. The local switch will communicate with the tadem switch, which is the long distance side of it. The problem is on the trunks from your local switch over the long distance carriers lines to the local switch where ever BluePay is. I requested that they switch the routing to a different long distance trunk. That means when I dial long distance, I may route to an entirely different tandem switch, or at least I'm going on a different trunk to that tandem switch.
After I requested the change, they called back and never admitted to a problem, (which I have discovered that they never will), but said that it should be working now. I turned a meter back on and tested several cards. I then turned up 1 bay and let it run for a couple days. It ran good so I enabled the rest of them.
I'm very surprised that Jim did not tell you about this. I beat him up pretty good about all this, and made sure he knew what the fix was since he claims he documents all this stuff in case someone else has the same problem.
Hope this helps,
Lighthouse