3Com ISDN Modem Changing the Parameter Settings, 3Type:, 4Press [Enter] or [Return], To change parameter settings:, and then press [Enter] or [Return]

5-4 CHAPTER 5: ADVANCED CONFIGURATION

Autobaud enabled unless you want to set the baud rate to

230.4Kbps. The command AT $B (baud rate) is used to set a specific baud rate, such as 230.4 Kbps. Refer to Appendix B for a list of acceptable values.

To access the 3C882 Configuration dialog box, Autobaud must be enabled. If the baud rate is set to a specific rate, you will not be able to access the Configuration dialog box. Refer to Chapter 8,“Restoring the 3C882 ISDN Modem to Autobaud.” for assistance.

Changing the Parameter Settings

To change parameter settings:

1Launch your communications or terminal emulation software.

2Be sure the 3C882 ISDN modem is in command mode (sometimes called local mode or terminal mode) so that it interprets your commands.

When powered on, the 3C882 ISDN modem automatically starts in command mode. If you have recently used the 3C882 ISDN modem to make a call and have not yet disconnected, type +++ to switch to command mode.

3Type:

AT <command>

4Press [Enter] or [Return].

Refer to Table 5-1for the appropriate command. For example, to disable compression, you would type

AT%C0

and then press [Enter] or [Return].

An AT command line starts with the characters AT. The command line accepts up to 40 command characters in the line (not including the two AT characters, or spaces).

AT commands may be used to set (or change) a value, as well as to read the status of an existing value by including a