Chapter 8 – Remote Configuration and Country Code Configuration
Changing the Remote Escape Character
To further improve security, you can change a remote modem’s remote configuration escape character. The remote configuration escape character is stored in register S9. The factory default is 37, which is the ASCII code for the percent character (%). Setting S9 to 0 (zero) disables remote configuration entirely.
Caution: If you do this remotely, you won’t be able to change it back remotely!
1.Establish a remote configuration link with the remote modem as described in Basic Procedure. Note: This command can be executed locally as well as remotely.
2.Type ATS9=n, where n is the ASCII code for the new remote configuration escape character, then press Enter.
3.Save the new value by typing AT&W and pressing Enter.
4.Type ATO and press Enter to exit remote configuration.
Country Code Configuration
Different countries have different requirements for how modems must function. Therefore, before you use the modem, you must configure it to match the defaults of the country in which you are using it. You can use one of two configuration methods: Using the Global Wizard and Using AT Commands.
Using the Global Wizard Utility
The Global Wizard configuration utility is recommended for computers running Windows 95/98/ME/2000/NT 4.0/XP.
1.Insert the MT5634SMI system CD into the
2.Click Initial Setup and Country Selection. The Global Wizard dialog box appears. Click Next.
3.View the Global Wizard as it searches for your modem and identifies it. Click Next.
4.Select the country in which the modem will be used, and then click Next.
5.Review your choice of country. If it is correct, click Next to configure the modem.
6.When Global Wizard announces that the parameters have been set, click Finish to exit.
Using AT Commands
If you are comfortable using AT commands, you can configure your modem using AT commands. You must enter these commands in your communication program’s terminal window.
To configure the modem for a specific country, execute the following AT commands:
Type AT%T19,0,nn (nn stands for country code). Press Enter. OK is displayed.
The changes to the country parameters are saved automatically.
To verify that the correct country has been configured, type ATI9. The country code is then displayed in decimal format. The following is an example of country, command and result codes.
Country | AT Command | Result Code |
| (Hexadecimal) | (Decimal) |
Euro/NAM* | AT%T19,0,34 (default) | 52 |
Japan | AT%T19,0,10 | 16 |
For a complete listing see Appendix C.
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