Im starting a new conversation group and we already are more than 20. Skype is not good with all tha ppl.

Ventrilo and Team Speak are not free.

I tried Xfire, Mumble, Roger Wilco and much more and all of them are gay.
Dolby is sophisticated but not free at all.

I need something with PTT (push to talk) feature where I can have moderators, a voice chat that I can ban or kick ppl, make different grups so ppl can be in different sections, etc.

Any suggestion?

Useful post please...