I mostly use Wavelab for music mastering and audio spectral editing, so I don´t see a use for this DMTF generator.
Yes, I read the manual, I know it generates phone tones.
What is the purpose of this tool?
What practical scenarios would require to use it?
Beyond using it as a creative sound effect, I can´t think of any other application for it.
Maybe… creating files for testing IVR systems?
I´m just curious here.