When powering on the system. The LED on each of the cards, the lower LED next to the ESI button and the top LED next to the reset button all are flashing fast (about .01 seconds).

I have the job specifications manual but does not say anything about this. Could not find any manuals for the 48 online.

Does anyone have an idea on what the flashing means and how to correct. When plugging a phone on the first pair (on the internal card) it does not work.

Thanks