compaq notebook series modem command lines User Manual

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Modem Command Guidelines
(Advanced Users Only)
Compaq Notebook Series
Document Part Number: 267638-001
April 2002
This document, designed for programmers, software engineers, 
system administrators, and other advanced users, provides 
guidelines for working with modem commands.
267638-001.book  Page i  Friday, January 18, 2002  8:39 AM 

© 2002 Compaq Information Technologies Group, L.P.
Compaq, the Compaq logo, Evo, and Presario are trademarks of Compaq 
Information Technologies Group, L.P. in the U.S. and/or other countries.
Microsoft and Windows are trademarks of Microsoft Corporation in the U.S. 
and/or other countries.
All other product names mentioned herein may be trademarks of their respective 
companies.
Compaq shall not be liable for technical or editorial errors or omissions 
contained herein. The information is provided “as...

Modem Command Guidelines (Advanced Users Only)iii
Contents
Modem Command Guidelines
Accessing HyperTerminal . . . . . . . . . . . . . . . . . . . . . . . . . .  1
Entering a Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  1
Identifying the Modem Type . . . . . . . . . . . . . . . . . . . . . . . .  2
Editing and Executing a Command . . . . . . . . . . . . . . . . . . .  3
Omitting a Parameter in a Command Line  . . . . . . . . . . . . .  3
Repeating a Command . . . . . . . . . . . ....

Modem Command Guidelines (Advanced Users Only)1
Modem Command Guidelines
Accessing HyperTerminal
An easy way to issue commands to the modem is via 
HyperTerminal, included with Microsoft Windows operating 
systems. To access HyperTerminal:
1. If you are using Windows 98, Windows 2000, or 
Windows Me, select Start > Programs > Accessories > 
Communications > HyperTerminal.
2. If you are using Windows XP Home or XP Professional, 
select Start > All Programs > Accessories > 
Communications > HyperTerminal....

2Modem Command Guidelines (Advanced Users Only)
Modem Command Guidelines
■Type commands following the AT prefix in uppercase or 
lowercase letters or a combination of both.
■Always type the AT prefix in the same case (not At or aT).
■Enter telephone numbers with or without punctuation; for 
example, (123) 456-7890 or 1234567890.
Identifying the Modem Type
To verify which manufacturer’s modem is included with your 
notebook, follow these steps:
Windows 98:
1. Right-click My Computer > Properties > Device...

Modem Command Guidelines
Modem Command Guidelines (Advanced Users Only)3
Windows XP Home and Windows XP Professional:
1. Select Start.
2. Right-click My Computer > Properties > Hardware tab > 
Device Manager button.
3. Double-click Modems.
4. Double-click the drop-down icon and verify the manufacturer 
listed on the General tab.
For details on modem commands, refer on this CD to 
Lucent/Agere Command Set or Conexant’s manual, Commands 
for Host-Processed or Host-Controlled Modems. For updates to 
these...

4Modem Command Guidelines (Advanced Users Only)
Modem Command Guidelines
Repeating a Command
You can repeat the last command line issued by entering the 
A/command. Because it also repeats the AT prefix and the enter 
key function, you are not required to enter the 
AT prefix or press 
enter when repeating this command.
The last command entered remains in the command buffer until 
the modem is reset or power to the modem is turned off. Both 
actions clear the buffer and make the 
A/ command invalid since...

Modem Command Guidelines
Modem Command Guidelines (Advanced Users Only)5
Escaping from Online Mode to Online 
Command Mode
Use the following steps to break out of a data transfer session 
(online mode) and enter the online command mode. The 
established connection is maintained, but input is interpreted 
locally and not transmitted to the remote connection.
1. Press and hold 
shift and type +++. 
An OK result code is displayed.
2. Enter modem commands as needed.
3. Return to online mode by entering 
AT 0...

6Modem Command Guidelines (Advanced Users Only)
Modem Command Guidelines
e. Select Connect Using > Direct to Com (X) where X is the 
number of the COM port used by your modem.
✎To verify which COM port is used by your modem, perform the 
following: 
■Windows XP Home and XP Professional: select Start > 
Control Panel > Phone and Modem Options icon > 
Modems tab > Attached To. Verify the COM port. 
■Windows 2000: Select Start > Settings > Control Panel > 
Phone and Modem Options icon > Modems tab >...