Lenovo 8297, 8288, 8342, 8329, 8380, 8326 manual Appendix C. Manual modem commands, Basic AT commands

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Appendix C. Manual modem commands

The following section lists commands for manually programming your modem.

Commands are accepted by the modem while it is in Command Mode. Your modem is automatically in Command Mode until you dial a number and establish a connection. Commands can be sent to your modem from a PC running communication software or any other terminal devices.

All commands sent to the modem must begin with AT and end with ENTER. All commands can be typed in either upper or lower case, but not mixed. To make the command line more readable, spaces can be inserted between commands. If you omit a parameter from a command that requires one, it is just like specifying a parameter of 0.

Example:

ATH [ENTER]

Basic AT commands

In the following listings, all default settings are printed in bold text.

Command		Function

A		Manually answer incoming call.

A/		Repeat last command executed. Do not
		precede A/ with AT or follow with ENTER.

D_		0 - 9, A-D, # and *

	L	last number redial

	P	pulse dialing

		Note: Pulse dialing is not supported for
		Australia, New Zealand, Norway, and South
		Africa.

	T	touch-tone dialing

	W	wait for second dial tone

	,	pause

	@	wait for five seconds of silence

	!	flash

	;	return to Command Mode after dialing

DS=n		Dial one of the four telephone numbers
		(n=0-3) stored in the modem non-volatile
		memory.

E_	E0	Commands are not echoed

	E1	Commands are echoed

+++		Escape Characters - Switch from Data Mode
		to Command Mode (T.I.E.S. Command)

H_	H0	Force modem on-hook (hang up)

© Lenovo 2006. Portions © IBM Corp. 2005.

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Contents User Guide Types 8288, 8297 Types 8329, 8342 Page User Guide Types 8288, 8297 Types 8329, 8342 Page Contents Iv User Guide Conditions that require immediate action Important safety informationService General safety guidelinesPower cords and power adapters Extension cords and related devices Plugs and outletsBatteries Heat and product ventilation CD and DVD drive safetyAdditional safety information Lithium battery noticeTo connect To disconnect Laser compliance statement Modem safety informationPower supply statement Information resources OverviewXiv User Guide Features Installing optionsVideo subsystem Operating systems preinstalled varies by model type Specifications Tools required Available optionsHandling static-sensitive devices Installing external optionsLocating the connectors on the front of your computer Locating the connectors on the rear of your computer Obtaining device drivers Connector DescriptionRemoving the cover Locating components Identifying parts on the system board What to do next Installing memoryInstalling adapters What to do next Drive specifications Installing internal drivesInstalling options Installing a drive in bay 1 or bay Installing options Connecting the first optical drive Connecting drivesInstalling security features Connecting a serial ATA hard disk driveIntegrated cable lock Password protection Changing the batteryPadlock Erasing a lost or forgotten password clearing Cmos Replacing the cover and connecting the cables User Guide Using passwords Using the Setup UtilityStarting the Setup Utility program Viewing and changing settingsUsing Security Profile by Device User PasswordAdministrator Password Setting, changing, and deleting a passwordSelecting a startup device Selecting a temporary startup deviceChanging the startup device sequence Exiting from the Setup Utility program Advanced settingsUpdating flashing Bios from a diskette or CD-ROM Appendix A. Updating system programsSystem programs Recovering from a POST/BIOS update failure Updating flashing Bios from your operating systemAppendix B. Cleaning the mouse Cleaning an optical mouseCleaning a mouse with a ball User Guide Basic AT commands Appendix C. Manual modem commandsInternal speaker on until carrier detected Low speaker volumeSet Pulse dial as default Set Tone Dial as defaultExtended AT commands MNP/V.42/V.42bis/V.44 commands Fax Class 2 commands Fax Class 1 commandsVoice commands Appendix C. Manual modem commands User Guide Appendix D. Notices Trademarks Television output noticeIndex Password lost or forgotten Page Part Number 41D4435