When a machine is vPro enabled any wake up command that LANDesk sends to that machine will use the vPro wake up call first. Then as a fall back the normal WOL magic packet will be used.
The Console needs to know that the machine is a vPro machine the inventory attributes that are looked at to determine if the mahcine is setup correctly.
under the AMT Information inventory there needs to be an AMT GUID and an Mode of Operation value set. If these are not set then the machine will not be able to use the vPro wake up feature