Multi-Tech Systems MT3334HD8 manual Configuration Storage and Recall Commands, NdNe Number Linking

Page 26

MT3334HD8 User Guide

You can automatically dial a telephone number that is stored in the modem’s number memory by typing ATNn, where n = 0 or 1. For example, you can dial a number stored at N0 by typing ATN0 in terminal mode and pressing ENTER.

Warning: Do not include the letter D in this command, or the stored number will be erased.

NdNe Number Linking

d = 0 or 1 e = 1 or 0 Default: none

Number linking allows the modem to dial a second stored number if the first stored number is busy. (See the DsNd command.) This command is useful when a computer can be accessed through more than one phone number. However, it cannot be used with blind dialing, since busy signals would not be detected.

To link the number in memory location N0 to the number in N1, type ATN0N1 and press Enter. You can cycle back and forth between two numbers by linking them several times in one command: ATN0N1N0N1N0N1<CR>. The only limit on the number of times the modem can cycle between two numbersisthe60-charactermaximumallowedinacommandline.

LList Stored Telephone Numbers

Use the L command to display dialing commands stored in the modem’s nonvolatile memory. Typing ATL<CR> displays the stored N numbers in the following format:

0 T14082345678

1 P9,T14089876543

All digits and command letters are displayed. The N number is shown first, followed by the complete dialing command and telephone number as originally entered.

Configuration Storage and Recall Commands

The MT3334HD8 stores parameters in two places. It stores factory default parameters in read-only memory (ROM), and customized parameters in nonvolatile random access memory (NVRAM). You can- not change the default parameters in ROM; however, you can change parameters in temporary memory and then store them in NVRAM as custom settings. You can then recall the custom settings as if they were factory default settings.

&Wn Store Configuration

n = 0 or 1 Default: &W1

The &W command stores current AT commands and S-register values in nonvolatile memory, so you won’t lose your custom settings when you turn off the modem or reset it.

&W0 (or &W) stores all current AT command and S-register values in nonvolatile random access memory (NVRAM) and configures the modem so that it reads your custom settings in NVRAM when the modem is turned on or when it is reset with the Z command. (The &F reset command will continue to read the factory default settings in ROM unless you store the &F9 command.)

&W1 erases your custom settings in NVRAM when the modem is turned off or reset, causing the modem to read the factory default settings in ROM when it is subsequently turned on or reset.

For further information on how the &W command interacts with the reset commands, see Table 2.

20

CommPlete Communications Server

Image 26
Contents MT3334HD8 Modem User Guide Multi-Tech Systems, Inc Woodale Drive Mounds View, Minnesota CommPlete Communications Server FCC Fax Warning Canadian Limitations NoticeTable of Contents Appendix D Testing the MT3334HD8Warranty, Service, and Technical Support Appendix FIntroduction Introduction LED IndicatorsPower Supplies Manual OrganizationInstallation Technical Specifications Data Rates ModemIntroduction 2400 & 1200 bps MT3334HD8 User Guide Power Installation Safety Warnings MT3334HD8 modem cardPre-Installation Notes Installation ProcedurePage AT Commands Modes of Operation Working with AT CommandsCommand Structure Command Editing AT Commands by Function $BA Ds Dial Dialing CommandsDial Modifier Commands Continuous RedialPulse or Tone Dialing Wait for New Dial ToneDialing Pause Rn Reverse Originate/Answer ModeReturn to Command Mode After Dialing Flash On-HookCall Card Tone Detect Phone Number Memory Commands@ Quiet Answer DsNd Store a Phone NumberNdNe Number Linking Configuration Storage and Recall CommandsWn Store Configuration List Stored Telephone NumbersReset Modem Modem Response Result Code CommandsFn Load Default Configuration Echo Command Mode Characters Result Codes Verbose/Terse #An Auto Speed Detection Online Connection CommandsAn Answerback Bn Answer ToneDTn Dtmf Detection DCn AT Command ControlCDn Cleardown at Disconnect Hn Busy-Out After Disconnect #Fn Fallback ModesGn Guard Tones Pn Set Pulse-Dial Ratios#Tn Trellis-Coded Modulation RDn Square Wave Ring Detect$Tn Calling Tone Yn Long Space Disconnect CommandsFn Echo Canceler Frequency Offset Compensation RAn Asymmetric Bit RateDn Data Terminal Ready Control RS-232 Interface CommandsCn Carrier Detect Control RFn CTS/RTS Interaction Control Rn Clear to Send ControlSn Data Set Ready Control SFn DSR/CD Interaction Control#Ln V.42 Error Correction Modes Error Correction and Data Compression CommandsEn Error Correction Modes En Data Compression$An Auto-Reliable Buffering $En V.42 Error Correction at 300 bps$Fn Auto-Reliable Fallback Character Enable/Disable $Rn Retransmit Count Speed Conversion Commands$BAn Baud Adjust $MBn Modem Baud Rate $SBn Serial Port Baud RateInquire Product Code Immediate Action CommandsRepeat Last Command L5, L7 List Current Operating ParametersFlow Control Commands E4 Hardware Flow Control E3 Flow Control DisableEn Non-Error Correction Mode Flow Control E5 XON/XOFF Flow ControlEn Pacing Computer-Initiated Flow Control #Xn Number of Xoff Characters Sent+++ATCR In-Band Escape Sequence Force Answer ModeEscape Sequences Breakatcr Out-of-Band Escape Sequence#Ixxxxxx Change Login Password Remote Configuration CommandsAtcr Remote Configuration Escape Sequence Go Back OnlineDPn Read Line Probe Data Line Probe Commands#Syyyyyy Change Setup Password DFn Format Line Probe DataRP Immediate Line Probe Diagnostic CommandsTn Respond to Remote Digital Loopback Signal Ln Display Line Probe DataUn Loopback Test Modes MT3334HD8 User Guide Registers S1 Ring Count RegistersS0 Number of Rings Until Modem Answers S2 Escape Code CharacterS5 Backspace Character S7 Time for Carrier Abort TimerS4 Line Feed Character S6 Wait Time for Dial ToneS9 Carrier Detect Response Time S10 Carrier Loss Disconnect Delay TimeS13 Remote Configuration Escape Character S11 Tone Dialing Spacing and DurationS24 PBX/CBX Disconnect Drop Time for DSR/CTS/CD S30 Inactivity TimerS34 Command Buffer Length After Online Escape Sequence S25 DTR Dropout TimeS43 Force V.34 Connect Speed S94 Out-of-Service TimeS37 DTR Busy-In Time S48 Maximum V.34 Connect SpeedExamples of Assigning Values AT Commands that Affect S-RegistersReading and Assigning S-Register Values Examples of Reading ValuesAT&E2$SP1#L3$R0$MB19200$SB115200$EB1S0=10&W0CR Testing the MT3334HD8 Test procedure Local Analog Loopback Test V.54 LoopTesting the MT3334HD8 Remote Digital Loopback Test V.54 LoopDial the remote modem and establish your online connection Local Digital Loopback Test V.54 Loop Local digital loopback testPage Warranty, Service, and Technical Support Limited Warranty ServiceTechnical Support Recording Product InformationDownloading a File Multi-Tech BBSLogging onto the Multi-Tech BBS Leaving a Message About CompuServeReading a Message BulletinsAbout the Multi-Tech Fax-Back Service About the InternetUsing FlashPro to Upgrade Firmware Upgrading the MT3334HD8 FirmwareMT3334HD8 User Guide Appendixes Appendix a Ascii Conversion Chart Ctrl Code HEX DECTone Dial Frequencies Appendix B Dial Pulses and TonesDial Pulses Figure B-2. Standard Dtmf frequencies Appendix C Result Code Summary Multi-Tech Result Codes &Q0Standard AT Result Codes &Q1 Register Unit Range Default Description Appendix D S-Register SummarySets fixed V.34 connect speed = 28800 bps Appendix E AT Command Summary ReturnCDn AT Command Summary $Fn Command Values Description Command Values Description $MBn RAn Command Values Description SFn Command Values Description #Vn Breakatcr Setup Appendix F Remote ConfigurationBasic Procedure Changing the Passwords Changing the Remote Escape CharacterIndex MT3334HD8 User Guide Index Long space break Pacing, 36, 37, 38 enable/disable, 38 ENQ/ACK Commands Loopback tests, 42, 43, 54, 56 tone detection