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CHAPTER 5: Remote Configuration
5. Remote Configuration
5.1 Introduction
Remote configuration is a network management tool that allows you to configure
modems anywhere in your network from one location. With password-protected
remote configuration, you can issue AT commands to a remote Portable USB
Modem for maintenance or troubleshooting as if you were on-site.
5.2 Basic Procedure
The following steps are valid regardless of whether the connection is established by
the local or the remote modem.
1. Establish a data connection with a remote modem.
2. Send three remote configuration escape characters followed by AT and the
setup password, and press ENTER. Example: %%%ATblackbox<CR>. You
have four tries to enter the correct password before being disconnected. If the
password is correct, the remote modem responds with
OK
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.
CAUTION
If you hang up while you are in remote configuration mode, it may lock
up the remote modem.
5.3 Setup
The Portable USB Modem is shipped with a default setup password (blackbox).
Because anyone who has an owner’s manual knows the default setup password, for
security you should change the password and possibly also the remote
configuration escape character.