3Com PC Card manual Using the Modem

26CHAPTER 5: USING THE MODEM

For most applications, you can use the factory-default setting for the modem initialization string. To reset your modem to the factory defaults, use the AT command string AT&F. For more information, see “S Registers” on page 32.

Making a Call with HyperTerminal is the resident telecommunication application supplied with

HyperTerminal Windows 95 and Windows NT 4.0. This section shows you how to place a call using HyperTerminal.

1Close any open applications you are not using. Be especially sure to close any communication programs.

2Click on Start/Programs/Accessories/HyperTerminal.

3Double-click the HyperTerminal icon to open the New Connection window.

In Windows 95 and Windows NT, you can find the Hyperterminal icon in Start/Programs/Accessories/Hyperterminal.

In Windows 98, look in Start/Programs/Accessories/Communications.

4In the Connection Description dialog box, type a text description, such as an easy-to-remember name, for the connection and click OK.

5In the Phone Number dialog box, type in the area code and phone number, for example 151217288528 (“1” followed by the area code and number of the Dell BBS).

6In the Connect Using menu, be sure that you have selected the 3Com 10/100 + 56K PC Card. If it does not appear, your modem is not installed correctly.

7Click OK.

8When the Connect dialog box appears, choose the location and the dialing properties (for example, dial a 9 to access an outside line, dial a 1 before long distance, wait for a dial tone, and so forth) you require to make the call from your site.

9Click Dial to initiate the call and make the connection.

You may hear a brief handshaking as the modem tries to establish a connection.

Making Calls from a Normally, your LAN+Modem card waits for a dial tone before dialing. In some Hotel or Business PBX cases, however, a modem cannot detect a dial tone even when voice calls can be

completed. This problem can occur when:

■Dialing into a standard telephone network using nonstandard dial tone conventions

■Placing a call from a country outside of the United States, where a different dial tone is used

■Dialing through a business or hotel PBX or a voice-mail system that indicates new mail with a unique dial tone (travelers often find that hotel PBXs have unique dial tones)

■Using telephones (such as cellular telephones) that require you to press a button before the dial tone can be heard

Try the following suggestions for restoring the standard dial tone: