- 1). Type "AT" to being your modem string.
- 2). Select AT commands you'd like to use. See resources for a detailed list of available AT commands.
- 3). Combine the commands into a Modem String. Separate each AT command with a "&" symbol.
- 4). Insert the modem string into your modem's properties. This can be done through "Phone and Modem Options" in your "Control Panel." Right-click on your modem and choose "Properties" under the "Advanced" tab.
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