[exim] Recieve mail using Dialup

Hi all

I am running Debian 4.0

I have a server that connects to my ISP via a dialup connection and i
would like to know the est way to download mail from my ISP servers to
my company server for delivery to my clients - i have been told that
Exim has ways of doing this - as i have given up trying to configure
fetchmail on my Debian System any assist in either of these packages
would be greatly appreciated (even though this is not a fetchmail
mailing list)