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Query the modem to verify that Windows can communicate with it. This can also confirm the model, driver version and manufacturer of the modem installed.

To do so, follow these steps.

1. Click Start, right-click My Computer, and then click Manage.

2. Expand Device Manager. In the right pane, expand Modems.

3. Right-click the modem that you want, and then click Properties.

4. Click the Diagnostics tab, and then click Query Modem.

The following message is displayed in a Please Wait dialog box, and Windows tries to communicate with the modem:

Communicating with Modem. This may take several seconds.

Windows sends AT commands to the modem, and returns information about how the modem responds to each command in the Command and Response columns of the Modem Information box of the Diagnostics tab.

What are the AT commands that is displays?