NM no longer supports a dialup modem?

[craig <zz 2008 10 orange fr>]

Hello,

Under Debian Etch with Gnome, NetworkManager listed my 56Kb dialup modem and was 
able to connect and disconnect to/from the Internet using that modem.

Now, under Debian Squeeze with Gnome, NetworkManager does not seem to know about 
my dialup modem at all, and I don't see any way to enter/edit that sort of 
connection using NM's connection editor.

I have scoured for documentation and advice and found nothing about 
NetworkMAnager and dialup modems.

Can anyone suggest the best way to be connect/disconnect to/from the Internet 
from within Gnome?

Thanks in advance.