When I get a call, it either never notifies me, or drops my modem line. As far as making the modem hangup when getting a call waiting signal, some modems will do this, other won't. Which modems display which behavior, seems more related to Murphy's Law than anything else. We've had very good success in interacting with alot of different brands of modems. If you are conservative, you should probably opt for the US Robotics modems.
Prices constantly change, so check around.
Sept-Oct 1996 issue. You might try the people who sold you the modem, but failing that, Workstation Support Services is very experienced in helping people with Macintosh, PC and Unix workstations problems. They maintain public servers that contain information of interest to the campus. If you are unable to find the information you need at their web site, you can contact them concerning problems hooking up your modem and configuring it and your computer. Sept-Oct 1996 issue.