Modem and Network Connections 
  Using the Modem (selected models) 
    Reference Guide  57 
 
To dial in to a network 
You can use the modem to dial in to a LAN (local area network) that supports dial-up 
connections. This gives you access to network resources from a remote location. 
?? See Windows Help for information about setting up and using dial-up network 
connections—click Start, Help and Support. 
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. Click Start, Control Panel, Printers and Other Hardware, Phone and 
Modem Options to change many modem settings. 
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 134. 
To send an AT command, 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.