Video ok but latency with sound

[TRAPPE Vincent]

Hi Guys,

    I would like to know how to improve the sound in Openmeeting 
3.2.1,  ( maybe QOS  ), we are using it only with two users with DSL 
connection of 2Mbit in download and 512kbit/s in upload and we 
experience sound latency, the user hear what we are saying 3 or 5 sec 
after.

Thanks for your help

Vincent