[FreeNX-kNX] Pros and cons of "modem" vs "ADSL" setting

[Steve Bergman]

A while back, I found a document explaining the differences between the 
various connection settings in the nx client.  As I recall, the main 
down side of setting the connection to "modem" was additional server 
load.  Unfortunately, I can't seem to locate that document, now.

On a very lightly loaded machine (7 users) is there really any 
disadvantage to just setting it to Modem?  I ask because I'd like to 
have a little more robustness and responsiveness in the event of network 
congestion, dsl flakiness, etc.  Can anyone point me to an explanation 
of the various connection settings and what they actually do?

Thanks,
Steve