From time to time I see this question: "can I use Microsoft Exchange to host mailing lists?" The answer is yes, if you buy extra software to add that functionality to Exchange. SlipStick is the definitive resource on this and many other Exchange/Outlook questions.
This weekend past I had to call AT&T because I didn't know the configuration of an SDSL modem that died. It was unbelievably difficult to get this phone number because I didn't have an Internet connection.
Local directory assistance (411) could not provide 800 numbers. 800 directory assistance (800-555-1212) uses TellMe, a voice-based automated system. Human operators for TellMe are only available during business hours during the week. AT&T Internet Services was not listed in the copy of the Yellow Pages we had. More than once I was directed to the number for AT&T Broadband, a cable Internet provider which has been acquired by Comcast. Feh.
For anyone who is interested, here are the secret numbers for AT&T Internet Services:
AT&T Managed Internet Services (T1, etc) 888-613-6330
AT&T DSL Internet Services 877-937-5288
These numbers are for problems with the Internet service. AT&T cannot provide support for modems, routers, or really anything other than confirming that the service is working or not. They can provide the TCP/IP configuration for the router, they just can't tell you how to use those numbers.
Here's a useful bit of knowledge--a computer running Windows Server 2003 can require a little tweaking in order to act as a print server for client computers running older versions of Windows.
Windows 2003 Print Server
In order to make a shared printer available in Windows Server 2003 for downlevel clients (Win 9x/ME/NT 4), make note of the following.
Windows NT Clients
Windows Server 2003 blocks the installation of kernel-mode drivers by default. NT drivers (and some 2000 drivers) fall into this category. Therefore the security policy must be adjusted before an NT driver can be installed.
I looked in the default domain policy and could not find the setting to disable the prohibition against kernel-mode drivers. Or rather, I was able to find it, but it was not defined. So the policy setting must be set somewhere else.
Windows 9x/ME Clients
HP provides a special driver package labeled with the Microsoft terminology "point and print". This bundle of drivers makes it easy to set up a print server for downlevel clients. This is not necessary if the drivers are already available on the Windows 2003 Server machine.