A program which lets machines on your network start, stop and manage a dialup connection on your server.

Windows net connection speed optimization.

Software to speed up Internet connections and optimize access. Helps browsing and downloading faster, by optimizing TCP/IP settings, ports and cache settings.

Give your computer the ability to make scheduled, automatic Internet connections.

An intelligent link management tool originally named for its ability to control dial-on-demand network connections.

Dialup Constructor is the most complete third party dialup network entry tool available for ISPs, Universities and other medium to large organisations.

Freeware to find/set MTU and optimize speed.

Brings an offline dial-up PCs online for true on-demand Internet PC-to-PC calls, chat, and FTP.

Provides control of multiple dialout modem connections to the members of a LAN using IP masquerade for Internet connectivity.

Prevents your Internet Service Provider (ISP) from disconnecting your dial-up session to the Internet involuntarily. Windows 95/98/NT/2000 shareware.

Internet connection sharing software, personal firewall software, Internet security and access management solutions.

Windows clients: email, news, telnet, finger, ping and traceroute.

Lots of resources on configuring serial/modem communications.