The version of America Online (AOL) originally bundled with the PowerBook 3400 is 3.0D. This version does not properly deal with the situation when another application, such as FAXstf, is set to answer. Upgrading to AOL version 3.0.1 or later will remedy the situation.
The article titled "
Locating Vendor Information" can help you search for a particular vendor's address and phone number.