Thank you for the question. In the past, ADTRAN created a configuration generator for the first and second generation NetVanta 3200 series routers: http://www.adtran.com/web/SoftwareDownload/1411/sw/2799. This was replaced and enhanced with ADTRAN Operating System's (AOS) implementation of the Graphical User Interface (GUI). Currently, people tend to use the GUI as a configuration generator. Many ADTRAN products have a "Getting Started" page in the GUI that can be used to quickly create a configuration, and then from Utilities > Configuration > Download Config the file can be exported easily.
You know, the GUI really is worth bragging about (and we do!). I think this covers most situations, thanks.