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Using the Modem
60 Reference Guide
To change your modem settings
The modem is already set up to be compatible with telephone systems and modems in
most areas. However, in some situations, you may have to change modem settings to
match local conditions. If you have questions about local requirements, contact your
telephone company.
• Control Panel. Open Modems (Windows ME, 95 or 98) or Phone And Modem
Options (Windows 2000) in Control Panel to change many modem settings. (For
Windows ME, if you do not see the Modems control panel, click on the View all
Control Panels option.)
For Windows ME, 95 or 98, on the General tab click Properties to set connection
speeds or special dialing options.
For Windows 2000, on the Modems tab click Properties to set connection speeds, or
on the Dialing Rules tab click Edit to set dialing options.
• Communications software. Many communications applications provide options for
controlling modem settings. See the help for your software.
• AT commands. You can control many aspects of modem operation using modem AT
commands. AT commands are special strings of characters sent to the modem to set
up specific conditions. Those command strings normally start with “AT”. For a list of
AT commands for the built-in modem, see “Modem Reference Information” on
page 129.
For Windows ME, 95 or 98, open Modems in Control Panel. (For Windows ME, if
you do not see the Modems control panel, click on the View all Control Panels
option.) On the General tab, click Properties, then on the Connections tab click
Advanced. You can type AT commands in the space for extra settings.
For Windows 2000, open Phone And Modem Options in Control Panel. On the
Modems tab, click Properties. You can type AT commands on the Advanced tab in
the space for extra settings.
For example, to force a built-in Ambit modem to connect with the V.34 modulation, you
can use the +MS command as shown in table of AT commands—type AT+MS=11 in the
space for extra settings.