master config file LICENSE_DIRECTORY, setting specific paths?

Have a newbie question regarding how to set specific license file paths per Polycom device. We only want certian models asking for the license file.

Currently we have all our Phones ask for the license file in the 000000000000.cfg with the PHONE_MODEL variable.

LICENSE_DIRECTORY="http......com/dms/[PHONE_MODEL]/lic" />

Can I add the specific Phone model to the  LICENSE_DIRECTORY parameter like we can with the "CONFIG_FILES" parameter?

   LICENSE_DIRECTORY_SPIP300="http........com/dms/SPIP330/lic"
   LICENSE_DIRECTORY_SPIP331="http:.........om/dms/SPIP331/lic"
   LICENSE_DIRECTORY_SPIP430="http............com/dms/SPIP430/lic"

Thanks

Dan