IBM 8088 Low speaker volume, Internal speaker on until carrier detected, Sr?, Sr=n, Detection

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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

36User Guide

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Contents User Guide Types 8086, 8087 Types 8089 Page User Guide Types 8086, 8087 Types 8089 Page Contents Iv User Guide Important safety information Conditions that require immediate actionPower cords and power adapters General safety guidelinesService Batteries Extension cords and related devicesPlugs and outlets CD and DVD drive safety Heat and product ventilationModem safety information Additional safety informationLithium battery notice To connect To disconnectPower supply statement Laser compliance statementOverview Information resourcesXii User Guide Installing options FeaturesVideo subsystem Operating systems preinstalled varies by model type Specifications Supported operating positions Available optionsHandling static-sensitive devices Installing external options Locating the connectors on the front of your computerLocating the connectors on the rear of your computer Connector Description Obtaining device driversOpening the cover Locating components Identifying parts on the system boardInstalling memory Installing options Installing a PCI adapter What to do nextWhat to do next Installing internal drives Removing and replacing an optical driveRemoving and replacing a hard disk drive User Guide Connecting a parallel ATA hard disk drive Security features Integrated cable lock Password protectionChanging the battery Erasing a lost or forgotten password clearing Cmos Closing the cover and connecting the cables User Guide Viewing and changing settings Using the IBM Setup Utility programStarting the IBM Setup Utility program Exiting from the IBM Setup Utility programSetting, changing, and deleting a password User passwordAdministrator password Using Security Profile by DeviceSelecting a temporary startup device Using IDE Drives SetupSelecting a startup device Changing the startup sequenceUser Guide Appendix A. Updating system programs Updating flashing Bios from a disketteUpdating flashing Bios from your operating system System programsRecovering from a POST/BIOS update failure Appendix A. Updating system programs User Guide Cleaning a mouse with a ball Appendix B. Cleaning the mouseCleaning an optical mouse User Guide Appendix C. Manual modem commands Basic AT commandsSet Tone Dial as default Low speaker volumeSet Pulse 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 Tier 2 CRUs Appendix D. Customer replaceable unit CRU parts listTier 1 CRUs User Guide Appendix E. Notices Television output notice TrademarksIndex Security integrated cable lock Page Part Number 19R2375