Frank Kostin wrote:
BTW, I heard that someone might need a licence for G.729 !?
It's a proprietory codec, so yes you need a licence for each and every channel you transcode. If you want to support the transcoding of 100 simultaneous conversations, you need 100 licences. You don't need a licence to just use G729; you only need licences when you need to encode or decode using G729. If you use asterisk, you can purchase a licence from Digium.