Modem and Network Connections 
Using the Modem 
64 Reference Guide 
•  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 147. 
For Windows 98, open Modems in Control Panel. 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 or XP, 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. 
To send and receive e-mail 
Sending and receiving e-mail requires an e-mail account with an Internet Service 
Provider or with your company’s communications system. If you are using AOL, e-mail 
services are part of your AOL service. For another ISP, you can use Outlook Express 
(included with your computer) or an e-mail system of your choice. This topic includes 
instructions for using Outlook Express. 
To start Outlook Express 
1.  Click Start, Programs (or All Programs), Outlook Express, or double-click Outlook 
Express on the desktop (if available). 
2.  If you are not currently connected to the Internet, the Dial-up Connection window 
appears. Choose Connect to connect to the Internet. 
To send an e-mail message 
1.  In Outlook Express, click the New Mail or Create Mail tool on the toolbar. 
2.  Fill in the information in the New Message window. 
3.  When you’re finished, click the Send button.