1. Disconnect from the Internet, AOL, etc., and open the Modems control panel. (From the Start menu, choose Settings, then Control Panels. Doubleclick Modems.)

2. Click the Diagnostics tab.

3. Select your modem from the list.

4. 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.

Important commands for the three major types of 56K modems are listed farther down the page. Explanations for Rockwell's ATI commands can be found on page 24 of their AT command reference manuals. Explanations for 3Com/U.S. Robotics' ATI commands can be found on page 6 of their x2 command reference.

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