Test a modem

Applies To: Windows Server 2003, Windows Server 2003 R2, Windows Server 2003 with SP1, Windows Server 2003 with SP2

To test a modem

  1. Open Phone and Modem Options in Control Panel.

  2. On the Modems tab, click the modem that you want to test.

  3. Click Properties, then click Diagnostics, then click Query Modem.


  • To perform this procedure, you must be a member of the Administrators group on the local computer, or you must have been delegated the appropriate authority. If the computer is joined to a domain, members of the Domain Admins group might be able to perform this procedure. As a security best practice, consider using Run as to perform this procedure.

  • To open a Control Panel item, click Start, click Control Panel, and then double-click the appropriate icon.

  • This procedure sends standard AT commands to your modem and displays the responses to indicate features supported by your modem.

Information about functional differences

  • Your server might function differently based on the version and edition of the operating system that is installed, your account permissions, and your menu settings. For more information, see Viewing Help on the Web.

See Also


Modem diagnostics
Log and view modem commands
Troubleshooting modems