User guide

Chapter 2 – Installing the Modem

14 Multi-Tech Systems, Inc. MT9234ZBA-Series User Guide

Using AT Commands to Configure Your Modem

Non-Windows users can configure the modem using AT commands. You must enter these commands in your

communication program’s terminal window.

1. Run your favorite communication program and open the program’s terminal window.

2. To configure the modem for a specific country/region, type AT%T19,0,nn,

where nn is the country/region code in hexadecimal notation.

3. Click Enter. The message OK displays.

4. To verify that the correct country/region has been configured, type ATI9

5. Click Enter.

The country/region code displays:

Example:

Country/Region

AT Command (hexadecimal)

Country code (decimal)

Euro/NAM

AT%T19,0,34 (default)

A list of country/region codes can be found on the Multi-Tech Web site at:

http://www.multitech.com/en_US/PRODUCTS/Categories/Device_Networking/global_modems/configuration.asp

The Global Modem Country Approvals page displays. On this page you can view approvals, configuration strings

and responses by country and products.