Samsung N640CN2024/EHQ manual Using AT commands, Using Command Mode during Communications

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In command mode, you can call by using AT commands and communicate with others by connecting to other modems. You can call this status Data mode or On- line mode. In data mode, You can't use any AT commands except the +++

command, which has +++ at the head.

If you stop communication and disconnect the phone, the Fax modem will run in command mode again.

Using Command Mode during Communications

Sometimes, you have to use AT command while you're communicating with others via modem. In this case, you can use +++ command for AT command without hanging up your telephone. Pressing '+' three times makes fax mode change to command mode. Of course, the telephone is not disconnected. (Don't enter Enter key after input +++)

Connection may be lost depending on the server.

If you want return to Data mode from command mode, you only have to input ATO and press the Enter key to start the communications again.

The mode can not be transfored from the command mode to data mode depending on the server.

Using AT commands

AT commands can be used in the following way. There's no difference between capital letters and small letters, and all commands should include 'AT' as a prefix except ones, which includes 'A/' instead.

Also, Carriage Return saved in the S3 register should be entered in order to sign the end of the command.

AT command

Press Enter key

Example: ATDT 123-4567 Press Enter and the model dials to 123-4567

Display the result value

After entering AT commands, the result value is displayed on the screen.

46 Using the Modem

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Contents Using Your Documentation Special Features of the User’s ManualUsing the Software User Documentation Introducing Your Computer LCDBack View of Computer Using Your Computer for the First Time Attaching the AC AdapterTurning On the Computer’s Power Turning On the ComputerUnderstanding Post Adjusting the LCD DisplayAPMAdvanced Power Management mode Turning Off Your ComputerACPIAdvanced Configuration and Power Interface mode Restarting Your ComputerTips for Using Your Computer Traveling with Your Computer Handling Spills Storing the Computer for Long PeriodsUsing the Keyboard KeyboardUsing the Embeded Numeric Keypad Numeric KeypadDescription of Special Function Keys Using Special Function KeysFn Key Function Combination Using the Keyboard Using the Touchpad Using the TouchpadMouse Action How To Using the Touchpad Reading the System Status Lights System Status LightsReading the System Status Lights Connecting Peripheral Devices Peripheral ConnectorsConnecting Peripheral Devices IconConnectorConnecting Peripheral Devices Drive Switch Using the Flex-BaySetting the IDE type To remove a device from the Flex-BayTo install a device in the Flex-Bay Removing a Device from the Flex-BayUsing the Floppy Drive Magnetic fields can destroy the information on a diskUsing the Floppy Drive Using the CD-ROM Drive Using the CD-ROM DriveUsing the CD-ROM Drive Using the DVD-ROM Drive Installing the Power DVD Player MPEG-2 SoftwareUsing the Hard Drive Removing the Hard DriveInstalling a Hard Drive Removing the Hard DriveUsing the Battery Charging the BatterySafely Using the Battery Removing the BatteryInstalling the Battery Removing the Battery PackMonitoring the Battery Charge Using the Battery GaugeUsing PowerProfiler to Monitor the Battery Set options under Battery Status and Alarm SettingsBattery Warnings Battery WarningsCondition Action to Take Using the Modem Sens Modem Naming ConventionIf you use a simple terminal program Precautions before useIf you use a Windows Communication Program Specification Description of 56KInstalling the Modem Driver in Windows Me Install the Modem DriverSelecting a Country Confirming Installation of the Modem DriverDeleting the Modem Driver Installing the Modem Driver in Windows 95/98 Check if Country is selected correctly Before Using AT Commands Modem CommandsWhat are AT commands? Command modeUsing Command Mode during Communications Using AT commandsDisplay the result value Basic AT Commands ATOATS0? System Setup Menus Using System SetupStarting System Setup Menu FunctionSystem Setup Navigation Keys Navigation Alternate Function KeyMain Menu Using System Setup Using System Setup Advanced Menu Security Menu Power Menu Using System Setup Boot Menu Exit MenuUsing System Setup System Passwords Using System SecurityCreating a Password Deleting a Password Locking the Hard Drive Boot Sector Requiring a Boot PasswordLocking the Keyboard Using Power Management Options Maximum Power Saving ModeStandby Mode Rest ModeRest Mode Precautions Using PowerProfiler Creating a Save to Disk Partition To create FdiskTo create Phdisk To reinstall your operating system Insert the System Recovery CD-ROMTo reinstall your original applications and drivers Video Features and Configuration Resolution and Color DepthSelecting a Monitor Type Configuring Display FeaturesVideo Driver Capabilities Changing Color Depth and Resolution Using the TV-Out Port Changing the Video DriverClick OK and follow the prompts that appear on the screen Using Dual View mode Setting Dual View modeLimits and cautions of using Dual View mode Two Displays Using several display devicesPrimary Limits Secondary Three DisplaysLimits on Video Driver while using Dual View mode Working with PC Cards Maintaining PC CardsUsing PC Cards Windows 98/ MeWindows NT Working with PC Cards Battery Pack Using OptionsAC Adapter Auto Adapter Memory ModulesBefore You Install Memory Installing a Memory ModuleRemoving the Memory Module Compartment Door Installing a Memory Module Hard DrivesSetting the switch on 2nd HDD CD-ROM DriveZIP Drive DVD-ROM Drive ModuleSuperdisk LS-120 Drive Docking Options Inserting a 120MB LS-120 diskette into the LS-120 driveIRQs About Drivers and System ResourcesDrivers IRQsService Pack 4 for Windows NT About Drivers and System Resources Computer does nothing when you turn it on TroubleshootingOperating Problem Computer is not behaving as expectedBattery power seems to run out faster than expected PC Card does not work correctlyModem Problems Infrared ProblemsWhen using a PBX phone system I cant dial on my modem Troubleshooting Dimension SpecificationsHardware Specifications EnvironmentNi-MH Dumb Battery Lithium-Ion Smart BatteryExternal AC Adapter Abbreviations CD-ROMPcmcia Voltage alternating current Universal serial busVolt Voltage collector currentGlossary BootBoot disk AC adapterCardBus DMA direct memory accessCache memory Cmos memoryAddress Floppy diskHard drive IRQ interrupt request lineMegabit RAM random access memoryMBmegabyte Operating systemROM read-only memory ResolutionRefresh rate SectorRecording the Computer Hardware Configuration Diskette aDisabled Bi-directional Parallel port Enabled Mode Output onlyDisabled 42F8, IRQ 2E8, IRQ 3 Disabled Disabled OtherSecurity Menu Page Important Safety Instruction Iii Federal Communications Commission FCC Federal Communications Commission FCC Part 68 Statement CTR21 Statement Canadian Radio Interference RegulationsClass 1 Laser Productlaserschutzklasse 1 Produkt General Requirements Power Cord RequirementCountry-Specific Power cord Set Requirements Country Accredited Applicable AgencySEV
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