Lenovo 9213, 9212 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 2005. Portions © IBM Corp. 2005.

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Contents User Guide Types 9212 Page User Guide Types 9212 Page Contents Iv User Guide Conditions that require immediate action Important safety informationService General safety guidelinesExtension cords and related devices Power cords and power adaptersBatteries Plugs and outletsHeat and product ventilation CD and DVD drive safetyLithium battery notice Additional safety informationTo connect To disconnect Laser compliance statement Modem safety informationPower supply statement Information resources OverviewXiv User Guide Features Installing optionsMemory Operating systems, preinstalled varies by model type Available options Tools required SpecificationsHandling 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 Identifying parts on the system board Locating componentsInstalling memory modules What to do next Installing adaptersWhat to do next Drive specifications Installing internal drivesUser Guide Installing a drive in bay 1 or bay Installing a hard disk drive in bay Installing options Connecting the first optical drive Connecting drivesInstalling security features Connecting a serial ATA hard disk driveChanging the battery Password protectionPadlock Erasing a lost or forgotten password clearing Cmos Replacing the cover and connecting the cables Using the Setup Utility program Using Security Profile by Device Setting, changing, and deleting a passwordSelecting a startup device Selecting a temporary startup device Exiting from the Setup Utility programChanging the startup sequence User Guide Updating flashing Bios from your operating system Updating flashing Bios from a diskette or CD-ROMAppendix A. Updating system programs System programsRecovering from a POST/BIOS update failure Cleaning an optical mouse Appendix B. Cleaning the mouseCleaning a mouse with a ball User Guide Basic AT commands Appendix C. Manual modem commandsSet Pulse dial as default Low speaker volumeSet Tone Dial as default Internal speaker on until carrier detectedExtended 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 Sata connectors Page Part Number 39J7678