Appendix C. Manual modem commands | Lenovo TC S51-8172, TC A51-8425

Attention Switzerland User:

If your Swisscom phone line does not have Taxsignal switched OFF, modem function may be impaired. The impairment may be resolved by a filter with the following specifications:

Telekom PTT SCR-BE

Taximpulssperrfilter-12kHz

PTT Art. 444.112.7

Bakom 93.0291.Z.N

Appendix C. Manual modem commands 39

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Lenovo TC S51-8172, TC A51-8425, TC A51-8424, TC A51-8428, TC S51-8171, TC S51-8173 manual Appendix C. Manual modem commands

Contents

User Guide Types 8424, 8425 Types 8171, 8172 Page User Guide Types 8424, 8425 Types 8171, 8172 Page Contents Iv User Guide Conditions that require immediate action Important safety information Power cords and power adapters General safety guidelinesService Batteries Extension cords and related devicesPlugs and outlets Heat and product ventilation CD and DVD drive safetyAdditional safety information To connect To disconnect Connexion Déconnexion Lithium battery noticeModem safety information Consignes de sécurité relatives au modem Laser compliance statement Xii User Guide Information resources Overview Features Power Input/output featuresSecurity features Expansion IBM preinstalled software Available options Operating systems preinstalled varies by model Specifications Supported operating positions User Guide Handling static-sensitive devices Installing optionsInstalling external options Cover keylock some models Obtaining device drivers Locating connectors on the rear of your computer Opening the cover Locating components Accessing system board components and drives Identifying parts on the system board Installing memory Installing PCI adapters What to do next Removing and replacing the battery Removing and replacing an optical drive Removing and replacing a diskette drive Installing security features Integrated security cable Identifying security locks User Guide To install a rope clip Password protectionRope clip Cover lock Closing the cover and connecting the cables Erasing a lost or forgotten password clearing Cmos Starting the IBM Setup Utility program Using the IBM Setup UtilityViewing and changing settings Exiting from the IBM Setup Utility program User Password Password considerationsAdministrator Password IDE Drive User Password Setting, changing, and deleting a password IDE Drive Master PasswordUsing Security Profile by Device Select Security Profile by Device Selecting a startup device Advanced settingsSelecting a temporary startup device Changing the startup device sequence Updating flashing Bios from your operating system Appendix A. Updating POST/BIOSUpdating flashing Bios from a diskette Recovering from a POST/BIOS update failure Cleaning a mouse with a ball Appendix B. Cleaning the mouseCleaning an optical mouse User Guide Basic AT commands Appendix C. Manual modem commands Set Pulse dial as default Low speaker volumeSet Tone Dial as default Internal speaker on until carrier detected Extended AT commands MNP/V.42/V.42bis/V.44 commands Fax Class 2 commands Fax Class 1 commands Voice commands Appendix C. Manual modem commands User Guide Appendix D. Notices IBM Trademarks Index Special characters Page Page Part Number 19R0474