I've posted a new version of ATAPI.NET which supports consultation transfers and a simple phone sample that shows off how to use the features.  In addtiion, this version of ATAPI.NET has a couple of bug fixes that were rolled in from a production project over the past couple of weeks to fix some weird startup/shutdown issues when a LINE_REINIT is reported by TAPI.  You can get the new code from our samples link -- http://www.julmar.com/samples.htm