typically I point folks at CUDLI:
http://www.ciscounitytools.com/Applications/CxN/CUDLI/CUDLI.htmlIt has a built in data dictionary for all tables (including UdirytDirDb) - you can look at the alternate contact number view there and select, for instance, the TransferType column and see that the enumeration for it is 1 for supervised and 0 for release transfers...
The XML for all the data dictionaries for all versions of Connection are installed with it so you can just fetch the XML directly if you prefer - it's in the DataDictionary folder under the install directory with sub folders for each major Connection release.