Such a shame that MOSES went freeswitch, you know that Kokua had auto-switch voice function to toggle between mumble and vivox (win/linux) module and it was free. I am currently in talks with Singularity getting it ported over.
I have also myself started dabbling more into the code, so I am working on making mumble a more default voice. Just because I feel the vivox pricing model is a little heavy, and mumble already works and ArminW before leaving do to real world issues left us a nice chunk of awesome code.