I have a UC520 v4.2 and 7931's running SCCP31.8-2-2SR2S firmware. Customer is reporting that sometimes a line that her phone has a monitor button for, shows with the light-off on her phone eventhough that person's line that she is monitoring is off-hook on their phone! While her monitor button is not lite she has gone into the person's office and seen that they are in fact on the line that her phone is monitoring. Anyone ever see this before. Also, can you load later versions of phone firmware for 7931 than what the CME/UC500 matrix states. I can see that the latest firmware for 7931 is at 8.35 something.
Thanks in advance,