How to test your modem in Windows 9X

• Open the Modems Applet by clicking on Start, then Settings, then Control Panel.
• Double click Modems.
• Click the Diagnostics tab
• Select your modem from the list
• Click the More Info button
• The More Info shows the results of ATI commands 0 through 7.

The ATI commands can be used to get Information about the modem. The commands have different meanings on different modems, but they may tell you the modem's speed, brand and model, or firmware version.

Rockwell 56K informative modem commands

Rockwell makes the K56flex chips used by Diamond Multimedia, Hayes, Motorola, Practical Peripherals, and many others.

Command Result ATI0 product code/speed ATI3 firmware version ATI6 datapump version AT&V1 connection statistics for last connection. see this page for more info AT+MS=? options supported. the explanations are on page 43 of Rockwell's AT command reference manuals Lucent 56K informative modem commands

Lucent makes the K56flex LT Winmodems shipped in Compaqs, IBMs, Hewlett-Packards, Sonys, and other computers. Their chips are also used in modems from CPI/ViVa and others.

Command Result ATI3 firmware version ATI11 information on your last connection 3Com/U.S. Robotics 56K informative modem commands

Most if not all x2 modems use these same commands.

Command Result ATI6 connection statistics for last connection. see this page for more info ATI7 shows information about your modem: model name, firmware version (DSP and supervisor date and rev.), and protocols supported (under Options). Options might include V.90, x2, V.34 (28.8) and V.34+ (33.6). ATI11 connection statistics for last connection. see this page for more info.