the topology is as follows.

fiber cpe has two active ports voice and data.

from the voice port goes to the SBC then from there it connects to a 5 port netgear switch from there to the lan port on mp10a

yes the os7100 has the same ip range as the data side. The SBC is set to 192.168.0.1

each network is isolated from each other.

i have no MOH right now when on hold it just has silence. i'm working on buying a moh device and wiring it into pins 4 and 5 of the misc port.