Why aren't you doing OPUS? Are you not liking the ability to hear and understand EVERYONE in the conference? Makes little sense to me, Sounds like your browser has a bug when PCMU is used at 8k I would really love to know what the problem is and the scenario that triggers it. Its unacceptable to say 'Oh set it to 12000 it fixes it'. The reason you have nobody complaining is they've never really experienced WebRTC properly.