[Observium] mitel monitoring?

I am looking to monitor a variety of Mitel telephony devices. I've added one and auto discovered it. I did note that the MIBs I could download from the device are precisely the same ones already located in /opt/observium/mibs/mitel

When auto discovery occurs, there is no mention of anything Mitel in the device. Is there something I have to do to push observium to enable Mitel stuff?