FOP2 Community Forum

Hi all.
I search in all the topic but i not can find nothing about.
I buy FOP2 and i use in 2 Elastix installation.
I manage 4 queue for any installation and all works good, i really apreciate this product.
What is strange, is that after some hours that i put new member in queue, i can see a change in their state and a red circle appears un the operators icon.
Usually the queue continue answare at in-calls, but sometimes, when this state appears on the operators, the extension in the queue not ring.
Now, why the operators in the queue go in unavailable/invalid state? (like the FOP2 documentation describe this status icon).
Thank all right now,
regards,
Mauro.