To configure the modem’s country setting, open a terminal program such as Hyper Terminal. At the command prompt, type: at<enter>. The re- sponse should be “OK”. Now type one of the following commands de- pending on the country where the modem will be operated.
Canada: at%T19,0,1c<enter>
Japan:at%T19,0,10<enter>
United States: at%T19,0,19<enter>
If the command was properly entered, the response will be “ OK”. A re- sponse of “ ERROR” will indicate an incorrect entry. After the command has been entered and accepted, the modem will default to this setting every time you turn on the system. To find your current country setting, issue the command ATI9<enter>. The response will indicate your cur- rent country setting (Canada, Japan, or North America).
Windows 3.1X
Step 8 After you have modified your autoexec.bat file to preset the I/O Port address and have obtained the modem’s IRQ Number by running the DOS “PMDMCFG.EXE” program, load Windows 3.1X.
Step 9 Go to
Step 10 Change the value for the Base I/O Address and the IRQ to the same value you wrote down in Step 4. If you modified your autoexec.bat file in Step 5, use 7900 as your Base I/O Address. Click the OK button when done.
Step 11 Windows will prompt you to reboot. Remove the diskette from the floppy disk drive and then click Yes.
Step 12 After the system reboots, restart Windows 3.1X and configure your applications to use the same COM Port you assigned to the modem in Step 10. Your modem should now be properly installed and ready for use.
Step 13 If you did not issue the Country Code Command during the DOS installation, turn to the section titled “Configuring Your Modem’s Country Code” for instructions on how to configure the modem to use the PSTN (Public Switched Telephone Network) of your country.
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