User guide

Appendix E – Using Out of Band Management
Multi-Tech Systems, Inc. MT9234ZBA-Series User Guide 49
Remote Configuration
Configuring the modem results in core settings that allow the modem to function properly on the console port
of the Cisco router.
You can use commands described in this section to remotely call into the MT9234ZBA attached to the console
port with another modem.
Note: Setting country/region configuration and turning on callback security cannot be done remotely. Nor
can all commands be executed remotely if the remote modem is set for callback security. Remote
configuration of a modem configured this way is not recommended.
1. Establish a data connection with a remote MT9234ZBA modem.
2. Send three remote configuration escape characters followed by AT and the setup password, and then press
Enter.
Example: %%%ATMTSMODEM. You have four tries to enter the correct password before being
disconnected. If the password is correct, the remote modem may respond with OK.
Note: If the modem has previously been configured with command echo off and result codes off, it may be
difficult to determine if the remote modem is responding to commands. The ATI command can be
used for this purpose. Even with echo and result codes off, the modem will respond with the
requested ID string if it is properly receiving the command.
3. You can now send AT commands to configure the remote modem.
4. When you have finished configuring the remote modem, save the new configuration by typing AT&W0<CR>,
then type ATO<CR> to exit remote configuration. You can then break the connection in the normal way.
Note: This step is important to ensure that the connection is broken cleanly.