Need help on achieving REALLY low latency!

[RyanDK]

I'm having a kinda urgent issue with the DNAS-buffer.

I work at a radiostation where I've been looking at the possibility of using a Winamp/Shoutcast solution as a way of transmitting audio from anywhere in our community back to the studio as close to real-time as possible.

My plan A was using a HSCSD-cell phone on a direct line to a Shoutcast server at the station house, where it'd redirect the sound to a WinAmp player (or similar) in the Air studio where the feed would go On-Air.

The problem with the latency - well... it's not easy to have a chat with someone On Air who's approx. 90 seconds behind in audio stream, right?

So...! Is there ANY way at all to reduce the buffer setting in the DNAS or other tweaks that'd allow me to have a window of max. 3 seconds of latency?
I know it'd kill the QoS idea, but since it's a direct line with plenty of bandwidth, I thought I'd deal with that as I went along. :-)

Thanks in advance for any help you can give!
Ryan.