This is the Telepathy-KDE file transfer handler
It basically does 2 thigs * Send files to your contact * Receive files from your contact
It doesn't set any filter on the mime type, therefore, it should catch all the file transfer channels that aren't received by any other handler filtering on mimetype.
To compile it you will need at least Telepathy-Qt4 >= 0.7.3 or the latest git version.
You can modify the default download directory from telepathy-kded-module or by adding in your .kde/share/config/ktelepathyrc file in the section [File Transfers] the variable downloadDirectory
[File Transfers] downloadDirectory=<download path>