Other Operating Systems 1-13 Make sure that the TCP/IP settings are correct.This is a general setup for your Courier V.Everything modem usingWindows NT. If you are having problems connecting to youISP,configuring Dial-Up Networking, or receiving RAS errors, please contactMicrosoft Technical support.Other OperatingSystemsThis sections explains how to configure your modem for: Windows 3.x MS-DOS OS/2 UNIX, Linux, or AIXIf You Are UsingWindows 3.Windows 3.x comes with a built-in communications software package,Windows Terminal. You can use Windows Terminal to test your modemor you can install the communications software package that is includedon the Connections CD-ROM.Because Windows Terminal only supports speeds up to 19200 bps, it isrecommended that you use a third-party communications softwarepackage.If You Are UsingMS-DOSBecause there is no communications software built in to MS-DOS, yomust install and run a third-party communications software package toperate your modem.You must choose the COM port to which your modem is attached inwhatever communications software package you are using.If You Are UsingUNIX, Linux, or AIFor instructions about how to set up your UNIX ®, Linux, or AIXcommunications software package, see the software’s installationprocedure.To set your Courier V.Everything modem to answer incoming calls, set DIPswitch 3 OFF; set 4 and 8 ON.