I have my last FX-II in the field. After a power outage the DOS Corp Office died. Shipped it out for repair and it is now working after replacing the PC power supply. Repair connected it on their bench and it answered fine. Now back in the field, I dial those analog extensions and they don't answer.

We have swapped the IST card and sent the VM out again. It doesn't appear to be either of those. When we connect a butt set or analog phone to the IST ports that feed the VM we can answer the calls. When the VM is connected it doesn't show any calls, and the VM extensions just roll and roll as if the cable isn't plugged in.

We have replaced the cabling and jacks to rule that out.

This all started after a power outage. The equipment was on battery backups FWIW.

Is it possible that the ring being generated by the IST is enough for a test set, but somehow not enough for the Rhetorex 432 to recognize? I remember on the DXP the ring generator was it's own device. I think the FX is build into the IST card. What would you try next?

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