If one of the computers does a big download, it messes with FS in two ways. If a connection is made, the voices are broken up, intermittent and difficult to understand. If the download is long enough, the connection to Flowroute is no longer usable due to registration failure.



In any case, regardless if you are using a dedicated or mixed dsl line you should flag your voice traffic properly.

signaling AF41, RTP EF... your voice traffic must never be flagged as pure date when sending it through open internet!



T.