Latency problem- Set netstream buffertime and buffertimemax

We developed a conference system using Wowza. Stream buffer time is very important in client side. Sometimes we find the user’s network is very good, but the audio is still broken.

When set netstream buffertime greater than zero, it will bring grow latency.

in Adobe document http://help.adobe.com/en_US/FlashPlatform/reference/actionscript/3/flash/net/NetStream.html#bufferLength

We found Netstream has a new property “bufferTimeMax”.

Language Version: ActionScript 3.0

Runtime Versions: Flash Player 10.1, AIR 2

Set the bufferTimeMax property to enable live buffered stream catch-up in the following cases:

•Streaming live media from Flash Media Server.

•Streaming live media in Data Generation Mode (NetStream.appendBytes()).

It’s really what we need to fix some user’s audio problem.

But when we use Wowza as media server, we find it doesn’t work if we set buffertimeMax value.

I’m not sure if the Wowza server support this new function.

Thanks for any advice! It’s really important for us.