This object defines the Net operation mode of the Omni-Bus card's port. pointToPoint - only 2 end-point ports talk; like any other voice card omniBus - many talk and listen. Like conference call. All can listen to all. pointToMultiPointSrc - There is one Master who can be heard by all. All can talk, but only the Master can hear all. Others can hear only the Master. This port is of the Master (Src). pointToMultiPointDst - There is one Master who can be heard by all. All can talk, but only the Master can hear all. Others can hear only the Master. This port is of a Destination (NOT Master).