Modem disconnects while online | Multi-Tech Systems MT5634ZPX-PCI

Owner’s Manual

prefix in MultiExpress Terminal, select Setup and Modem. Then select the modem type you are using and type the new prefix in the Dial Prefix box.

To change it for Windows 95 software, select Start, Settings, Control Panel, and then Modems. In the Modems Properties sheet, select the appropriate modem model number (e.g., Multi-Tech MT5634ZPX-PCI), click Dialing Properties and type 9 in the local and long distance boxes in the How I dial from this location box.

•If the modem reports NO ANSWER, the other system has failed to answer, or you may have dialed a wrong number. Check the number.

•If the modem reports NO CARRIER, the phone was answered at the other end, but no connection was made, you may have dialed a wrong number, and a person answered instead of a computer. Or, you may have dialed the correct number, but the other computer or software was turned off or faulty. Check the number and try again or try calling another system to make sure your modem is working. Also, try calling the number on your telephone. If you hear harsh sounds, then another modem is answering the call; the modems may be having problems negotiating due to modem incompatibilities or line noise. Try connecting at a lower speed by setting register S37 to a lower rate (e.g., by typing ATS37=11 in the terminal window and pressing ENTER) and then calling again.

The modem disconnects while online

•If you have call waiting on the same phone line as your modem, it may interrupt your connection when someone tries to call you. If you have call waiting, disable it before each call. In most telephone areas in North America, you can disable call waiting by preceding the telephone number with *70 (check with your local telephone company).

You can disable call waiting automatically by including the disabling code in the modem’s dial prefix (e.g., ATDT*70,—note the comma, which inserts a pause before the telephone number is dialed). For example, to change the dial prefix in MultiExpress Terminal, select Setup and Modem. Then select the modem type you are using and type the new prefix in the Dial Prefix box. To change it for Windows

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Multi-Tech Systems MT5634ZPX-PCI owner manual Modem disconnects while online

Contents

Model MT5634ZPX-PCI MT5634ZPX -PCI Record of Revisions Contents Introduction Initial Checklist Common Problems Introduction Limited WarrantyData is being lost Technical Support Introduction and Description MT5634ZPX-PCI Features Introduction and Description Peripiheral Component Interconnect PCI Fax Support/Functions Downstream RatesUpstream Data Rates Optional V.8bis Sequence What is in Your Modem Package? Digital Loss and Robbed-bit Signaling Auto Adapt How to Use This Manual Appendix Typographic Conventions You type this Installation Introduction What You’ll Need Installation Safety WarningsInstallation Overview Configuring the MultiModem ZPX-PCI Windows 95 Plug and Play Installing the MultiModemZPX-PCI With the modem, insert the microphone External ConnectionsPlug the telephone’s line cable into Installing Drivers Verifying Configuration Port COM Interrupt Address Speed To Remove Previous Modem from Windows Select Start, Settings, and then Control PanelIs Your MultiModemZPX-PCI Ready for Use? Operating Your MultiModemZPX-PCI Simple Operation Select Start, Programs, Accessories, and then HyperTerminal Software ConfigurationTesting Data Functions Connect dialog box, click Dialing Properties MultiModemZPX-PCI’s fax capabilities Testing FAX FunctionsClick Start, Programs, Accessories, and then WordPad Testing Voice Function Click Start, Programs, Accessories, and then HyperTerminal MultiModemZPX-PCI’s Speakerphone Test AT+FCLASS=8 AT+VLS=7 Configuring Communications Software Installation Remote Configuration Basic Procedure Setup Changing the Setup Password PKUNZIP.EXE AT Commands, S-Registers, and Result Codes AT Commands AT Commands, Result Codes, and S-Registers Communication Standard SettingCarrier Control Dial Echo Command Mode Characters DS=n Dial Stored Telephone NumberEcho Online Data Characters Hook Control Monitor Speaker Volume Monitor Speaker ModeReturn Online to Data Mode Modulation Handshake Sr=n Set Register Value Sr? Read Register ValueResult Code Format Result Code Selection Modem Reset Long Space DisconnectAuto Retrain Data Carrier Detect DCD Control Fn Load Factory Default Settings Communications ModeAsynchronous Communications Mode 22bis Guard Tone Control Self-Test Commands View Current ConfigurationStore Current Configuration Select Stored Configuration for Hard Reset \Nn Error Correction Mode Selection \Gn Modem Port Flow Control\Jn Data Buffer Control \Kn Set Break Control \T n Inactivity Timer \V n Protocol Result Code\X n XON/XOFF Pass-Through Data Calling Tone Speaker Codec Loopback Enable Synchronous Buffered ModeAllowed value Registers Decimal Disables, 1-255 enables Modulation 50-150Tones Minute 255 Connect. Where K56flex provided =V.90/56Kflex disabledData mode = disable 1 = enable Sets one of three 56K operating S36=5,7 LAPM, MNP, or Async MNP or Async1-4 sets the value to Result Codes Connected at 46000 bps Connected at 48000 bpsConnected at 50000 bps Connected at 52000 bps Troubleshooting Initial Checklist Common Problems Troubleshooting MT5634ZPX-PCI Modem dials but cannot make a connection Modem disconnects while online Modem cannot connect when answering Data is being lost Warranty, Service, and Tech Support/BBS Limited Warranty Online Warranty Registration Warranty, Service, and Tech Support Technical Support Recording Modem Information Service Multi-Tech Systems, Inc Woodale Drive Mounds View, MN Multi-Tech BBS To log on to the Multi-Tech BBSTo Download a file If you know the file name If you don’t know the file name About the Internet About the Multi-Tech Fax-Back ServiceAbout CompuServe Appendix Appendix a Regulatory Compliance FCC Regulations for Telephone Line Interconnection Multi-Tech Systems, Inc Fax Branding StatementAppendix Canadian Limitations Notice Appendix Product Safety Compliance +12 VDC, -12 VDC, +5 VDC Figure A-1. Creepage and Clearance Distances EMC, Safety and Terminal Directive Compliance European Low Voltage Directive New Zealand Modem Warning Notice Appendix B Technical Specifications 14,400, 12,000, 9600, 7200, 4800, 2400,90/K56flex, ITU V.34 extended, V.34, ITU ITU Group 3, T.4, T.30, V.21, V.27ter Appendix Fax Carrier Frequencies Hz mark, 1850 Hz space for Transmit Connectors Appendix C Ascii Conversion Chart Code HEX DEC Appendix D FLASHWINFlash Upgrade Introduction MT5634ZPX-PCI Index BBS Enable/disable V25 data calling tone S35 IndexAuto Retrain Data Fax-back service , 66 FCC Regulations , 68-81 firmware Fall-forward , 7 fallback , 7, 37 fax Tones dialing MT5634ZPX-PCI