Lenovo TC A51-8425 Low speaker volume, Internal speaker on until carrier detected, Sr?, Sr=n

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Command		Function

	H1	Force modem off-hook (make busy)
		Note: H1 command is not supported for Italy

I_	I0	Display product-identification code

	I1	Factory ROM checksum test

	I2	Internal memory test

	I3	Firmware ID

	I4	Reserved ID

L_	L0	Low speaker volume

	L1	Low speaker volume

	L2	Medium speaker volume

	L3	High speaker volume

M_	M0	Internal speaker off

	M1	Internal speaker on until carrier detected

	M2	Internal speaker always on

	M3	Internal speaker on until carrier detected and
		off while dialing

N_		Included for compatibility only, provides no
		effect

O_	O0	Return to Data Mode

	O1	Return to Data Mode and initiate an equalizer
		retrain

P		Set Pulse dial as default

Q_	Q0	Modem sends responses

Sr?		Read and display value in register r.

Sr=n		Set register r to value n (n = 0-255).

T		Set Tone Dial as default

V_	V0	Numeric responses

	V1	Word responses

W_	W0	Report DTE speed only

	W1	Report line speed, error correction protocol,
		and DTE speed.

	W2	Report DCE speed only

X_	X0	Hayes Smartmodem 300 compatible
		responses/blind dialing.

	X1	Same as X0 plus all CONNECT
		responses/blind dialing

	X2	Same as X1 plus dial tone detection

	X3	Same as X1 plus busy detection/blind dialing

	X4	All responses and dial tone and busy signal
		detection

Z_	Z0	Reset and retrieve active profile 0

	Z1	Reset and retrieve active profile 1

34User Guide

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Contents User Guide Types 8424, 8425 Types 8171, 8172 Page User Guide Types 8424, 8425 Types 8171, 8172 Page Contents Iv User Guide Important safety information Conditions that require immediate actionGeneral safety guidelines ServicePower cords and power adapters Extension cords and related devices Plugs and outletsBatteries CD and DVD drive safety Additional safety informationHeat and product ventilation To connect To disconnect Lithium battery notice Modem safety informationConnexion Déconnexion Laser compliance statement Consignes de sécurité relatives au modemXii User Guide Overview Information resourcesFeatures Input/output features PowerSecurity features ExpansionIBM preinstalled software Operating systems preinstalled varies by model Available optionsSpecifications Supported operating positions User Guide Installing options Installing external optionsHandling static-sensitive devices Cover keylock some models Locating connectors on the rear of your computer Obtaining device driversOpening the cover Locating components Accessing system board components and drives Identifying parts on the system board Installing memory Installing PCI adapters Removing and replacing the battery What to do nextRemoving and replacing an optical drive Installing security features Removing and replacing a diskette driveIdentifying security locks Integrated security cableUser Guide Password protection To install a rope clipRope clip Cover lockErasing a lost or forgotten password clearing Cmos Closing the cover and connecting the cablesUsing the IBM Setup Utility Starting the IBM Setup Utility programViewing and changing settings Exiting from the IBM Setup Utility programPassword considerations User PasswordAdministrator Password IDE Drive User PasswordIDE Drive Master Password Setting, changing, and deleting a passwordUsing Security Profile by Device Select Security Profile by DeviceAdvanced settings Selecting a startup deviceSelecting a temporary startup device Changing the startup device sequenceAppendix A. Updating POST/BIOS Updating flashing Bios from a disketteUpdating flashing Bios from your operating system Recovering from a POST/BIOS update failure Appendix B. Cleaning the mouse Cleaning an optical mouseCleaning a mouse with a ball User Guide Appendix C. Manual modem commands Basic AT commandsLow speaker volume Set Pulse dial as defaultSet Tone Dial as default Internal speaker on until carrier detectedExtended AT commands MNP/V.42/V.42bis/V.44 commands Fax Class 1 commands Fax Class 2 commandsVoice commands Appendix C. Manual modem commands User Guide Appendix D. Notices Trademarks IBMIndex Special characters Page Page Part Number 19R0474