Multi-Tech Systems BA-Series manual Configuration and Default Storage Commands, Number Linking NN

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Chapter 4 - Command Mode

Number Linking NN

You may command the modem to dial another number automatically if the first number dialed is busy. This would be useful in a situation where a computer can be accessed through more than one phone number. This is called “linking”.

To link the number in N1 to the number N2, simply enter ATN1N2 and hit RETURN. Several numbers can be linked in the same command. For example, you could link N1 to N2 to N3 to N4 by entering ATN1N2N3N4 and RETURN or you could link N1 to N2 and back to N1 and then back to N2 by entering ATN1N2N1N2 and RETURN.

The only limit on the number of numbers that can be linked is the 60 characters allowed in a command line. Number linking can not be used with blind dialing, since busy signals would not be detected. You would have to select the Wait-for-Dial tone dialing method using the X Command in order to use the Number Linking feature.

Listing Numbers Stored in Memory L

Telephone numbers that you have stored in the modem’s memory may be listed and displayed with the L command. It will display all ten stored N numbers in a format like that shown below. All digits and command letters will be shown. The number’s “name” (0 thru 9) is shown first, followed by the complete dialing command and telephone number as originally entered.

Simply enter ATL and hit RETURN to display these numbers on your video screen or printer. An example of an L command listing is shown below:

0DT14082345678

1DT16125551212;

2DP9,T14089876543

3DT3738315,12101,16126313550

4DT6313551R

5

6DP9,4258513

8DTX4&E1&E5&E13&E15DT16126313550

9DT12138880123

4.4.4Configuration and Default Storage Commands

Store Configuration & S-Register Parameters in Non-Volatile Memory &W

The modem can store configuration parameters and S-Register values in its nonvolatile read/write Random Access Memory (RAM) memory. The &W command does this, which prevents any re- configuration from being lost on a power-down or Reset (ATZ) condition.

&W0 (or AT&W) causes the modem to store your customized AT command settings and S-Register values in its nonvolatile RAM. &W0 also sets the modem so that it reads your customized settings stored in nonvolatile RAM when powered down or reset. (The &W0 command only changes the settings stored in nonvolatile RAM that you specifically intend to alter. All other default parameters are applicable.)

&W1 causes the modem not to store your customized settings to nonvolatile RAM so that, after powering down or resetting the modem, it reads the factory default settings stored in ROM.

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Contents User Guide Record of Revisions User GuideContents Index 106 Introduction and Description Introduction How To Use This ManualWarranty, Service & Technical Support Modem FeaturesCallback and Remote Configuration DIP-SwitchesFax Features 1 2834 Series FeaturesTechnical Specifications Power MT2834 LED Display Modem LED IndicatorsControls on PC Board Installation and Connection Installation What is in Your Modem Package?Step Procedure Safety WarningsInstallation Procedure Installation and ConnectionMultiModemBA/BAI Connections Installing Data Communications SoftwareSoftware Configuration and Modem Basics AT &F X4 S0=0 M Configuring Your SoftwareConfiguring Software for Your Modem PC Initialization StringsOther Parameters Changing Default ParametersConfiguring Software for Your Computer Configuring Software for the Remote SystemFile Transfer Protocols Terminal EmulationCommand Mode Functional Modes AT Command EditingCommand Mode Summary of AT CommandsStore Modem Configure Data Multi-Tech Result Codes Result CodesStandard AT Result Codes Dialing a Stored Number N Dialing Commands Dialing Action CommandsDial Command D Continuous Redial not used in BAI a or Pulse or Tone Dial P T Dial Modifier Commands DTR Dialing $D Voice/Data Dialing $VDAutomatic Pauses in Dialing Return to Command Mode After Dial Command ExecutionReverse the Mode of Operation R Set Pulse Dial Ratios &PQuiet Answer @ Phone Number Memory CommandsFlash On Hook Calling Card Detect Tones $Number Linking NN Configuration and Default Storage CommandsListing Numbers Stored in Memory L Unix Uucp Spoofing $SP Loading Factory Defaults &FModem Reset Z Async/Sync Mode Switching &MResult Codes Multi-Tech or Standard AT &Q Command Response Result Code CommandsEcho Command Mode Characters E Result Codes Enable/Disable and No Response Answer QResult Codes Basic and Extended and Call Progress Selection Phone Line Conditioning CommandsGuard Tones Not Used in BAI Models &G Phone Line Monitoring Speaker M Enable/Disable Trelis Coded Modulation #TFallback Modes When On-Line #F Bell/V.21 ToneAuto Speed Detect #A 7 RS-232C Interface Control CommandsEnable/Disable Lowspeed Fast Connect $FC Cleardown at Disconnect &CDCTS/RTS Interaction Control &RF Data Terminal Ready Control &DCTS Control &R Data Set Ready Control &SError Correction Commands Auto-Reliable Buffering $A Enable/Disable Auto Reliable Fallback Character $FError Correction/300bps $E Flow Control CommandsRetransmit Count $R Xon/Xoff Flow Control &E5 Hardware Flow Control &E4Xon/Xoff Pass-Through &E7 Terminal/Computer Initiated Pacing &E13 Normal Mode Modem Flow Control On &E11Send Xon/Xoff Characters #X Hewlett-Packard ENQ/ACK Pacing &E9Parity Selection #P Normal/Auto-Reliable/Reliable Mode CommandsXon/Xoff Pass-Through Commands Enq/Ack Pacing CommandsSpeed Conversion $BA Speed Conversion CommandsModem Baud Rate $MB Serial Port Baud Rate $SB Immediate Action Commands Off Hook H Force Answer Mode aFormat of Line Probe Graph or Table Commands Line Probe CommandsExiting Command Mode, Going Back On-Line O Enable/Disable Reading of Line Probe Information CommandsRegisters Return Character Number of Rings Until Modem AnswersRings Which Have Occurred Escape Code CharacterWait Time for Dial Tone Time for Carrier Abort TimerLine Feed Character Backspace CharacterS11 Tone Dialing Tone Spacing and Duration S10 Carrier Loss Disconnect Delay TimeS13 Remote Configuration Escape Character Carrier Detect Response TimeS24 PBX/CBX Disconnect Drop Time for DSR/CTS/CD S15 Callback Time DelayS16 Callback Attempts S17 Changing Break TimeS32 Time Elapse for Escape Sequence S26 Failed Password AttemptsS29 Local Inactivity Timer S30 Inactivity TimerS48 Program V.34bis Connect Speeds 2834 Series only Reading and Assigning S-Register ValuesS36 Time Between DTR Inactive and Modem Off-Hook S37 Time Between DTR Active and Modem On-HookExamples of Assigning Values AT Command and S-Register SummaryExamples of Reading Values Callback Security and Remote Configuration Remote Configuration Description Callback Feature DescriptionTo turn your modems Callback Security feature on and off To change your Remote Configuration feature statusTo set parity of the password/message prompt AT#DB2CR or AT#DB1CR Remote Configuration Operation Procedures StepProcedure Remote Configuration ProceduresCallback Security and Remote Configuration Callback Operational Sequence ProceduresAT#I=yyyyyyyyyyCR Remote Configuration and Callback Security AT CommandsCallback Security Enable/Disable Change Login PasswordRemote Configuration/Callback Security S-Registers Local Inactivity Timer S29 DIP-Switch Settings PC Board DIP-Switch Option SettingsDIP-Switch Settings Switch #4 AS/400 Mode Synchronous Mode/Leased Line/Dial-UPMultiModemBA User Guide = Down Down Switch #16 Reserved for Future Use Speaker Volume ControlSwitch Function Position Effect Recording Option ConfigurationsDIP Switches #15-16 DIP Switches #13-14Warranty, Service and Tech Support Warranty, Service, and Technical Support Multi-Tech Systems, Inc. Warranty & Repairs PoliciesRepair Procedures for International Distributors Online Warranty RegistrationCountry Telephone Replacement PartsTechnical Support Internet SitesAppendixes Appendix a Upgrading Your Modem’s Firmware Upgrade OverviewDownload the Upgrade File Upgrade the Modem’s Firmware None of the LEDs Light When the Modem Is On Appendix B TroubleshootingModem Does Not Respond to Commands Appendix B Troubleshooting Modem Dials But Cannot Make a Connection Am Losing Data Modem Cannot Connect When AnsweringModem Disconnects While On-line File Transfer Is Slower Than It Should BeAm Getting Garbage Characters on the Monitor Appendix C AT Command Summary Apendix C AT Command SummaryCommand Values Description SN d MultiModemBA User Guide Command Values Description$Fn RF n $SBn Break Atcr Callback Security/Remote Configuration Command Summary Command Description #Ixxxxxxxxxx Password Command Summary#Syyyyyyyyyy 25bis Commands Appendix D V.25bis Operation Delayed and Forbidden Numbers25bis Operation Appendix D V.25bis Operation 25bis Mode AT Commands25bis DIP-Switches 25bis Set-Up and Initialization25bis Responses Result Codes 25bis AT CommandsEnable/Disable V.25bis Mode $V Command Change Serial Baud Rate CSP CommandDisregard or Connect to Incoming Calls DIC or CIC Command Dial Phone Number Provided CRN CommandListing Delayed Phone Numbers RLD Command Listing Forbidden Phone Number RLF CommandSwitzerland DTR Dialing $D CommandITU V.25bis Country Specific Information ItalySingapore Appendix E MultiModemBA Cables AustriaFrance BelgiumFigure E-1. RS232 Cable IBM PC Appendix E MultiModemBA CablesIndustry Canada Appendix F Regulatory Information FCC PartFCC Part 68 Telecom Appendix F Regulatory Information104 Canadian Limitations NoticeInternational Modem Restrictions EMC, Safety, and R&TTE Directive Compliance105 106 Index107 Index108 PBX/CBX Disconnect Drop Time for DSR/CTS/CD53109