Multi-Tech Systems MT5634ZLX/FE manual Modem Goes Off-Hook and Disables the Telephone Line

Page 52
The COMx port that the modem is set to may be used by another card in the computer.
Change the COMx port of MT5634ZLX/FE to a different unused port. It might be best to set it to COM3 or COM4. Even if you are not using a serial port which is set to the same COMx port as the modem, it can still interfere with the modem. Be sure to update your software COMx port setting as well.
The Interrupt that the modem is using may be the same Interrupt that another card is using.
Change the IRQ settings to a different, unused, IRQ. Even if you are not using a serial port which is set to the same IRQ as the modem, it can still interfere with the modem.

MultiMobile User Guide

Introduction

This chapter provides general and specific problem solving steps. Below are a number of examples of Problems (P:), Causes (C:), and Solutions (S:). If your MT5634ZLX/FE is not working properly, look up the problem and solution here; if unsuccessful, call Tech Support. At the end of this chapter, there are some specific steps for resolving IRQ and COM port conflicts.

P:No Response to AT Commands

C:

S:

C:

S:

P:The Modem Does Not Execute the Command Line

C: Make sure you are typing ‘AT’ at the beginning of command line (and hit Enter at the end).

C: Make sure the modem is not in Data Mode. Type +++ if necessary.

C: Make sure your software is set to the same COMx port as your MT5634ZLX/FE.

P:The Modem Does Not Give a Response After an AT Command Was Executed

C: The echo and/or responses may be turned off by the ATE0Q1 commands. Enable the AT&V1 to check Result Codes.

S: Use ATE1Q0 then Enter to change them back.

C: Make sure the modem is in Command Mode and not Data Mode when you type the AT command.

P:The Modem Gives an ‘ERROR’ Response After an AT Command was Executed

C:Make sure you did not type an invalid command.

C: Make sure your command line is 40 characters or less.

P:The Modem Goes Off-Hook and Disables the Telephone Line.

C:The modem may be set to auto-answer the phone when it rings.

S: Disable auto-answer by typing ATS0=0 then Enter at the command line.

P:The Modem Does Not Auto-Answer the Phone

C: If necessary, make sure the software is configured to auto-answer the phone.

A: To set auto-answer mode on from AT command mode, type ATS0=n then click Enter. The n stands for which number of rings the modem answers. For example: ATS0=3 causes the modem to answer on the third ring.

P:The Software Does Not Control the Modem Properly or Can Not Detect the Modem

S:Make sure the software was set up correctly. Check the initialization string and dial string.

C: Some TSRs (programs that stay in memory after they are loaded) may conflict with the communications software.

S: Try starting your computer without loading any TSRs.

52

MT5634ZLX/FE

Image 52
Contents User Guide User Guide Revision DescriptionContents Index Introduction and Description Introduction Product DescriptionFast Ethernet MultiMobile User GuideCategory 3 and Category 5 Ethernet Cabling Auto-negotiationIntroduction and Description Technical Specifications Features System Requirements Quick Start Safety Warning Telecom UnpackingMT5634ZLX/FE LAM Information Quick StartInstalling the MT5634ZLX/FE Card MT5634ZLX/FE InstallationLED Indicators MODEM-LAM LEDsEthernet LAM Act10/100 LinkInstalling Driver and Modem Software Windows 98 InstallationMT5634ZLX/FE Add New Hardware Wizard dialog box is displayed Windows 95 Installation Quick Start Windows NT 4.0 Installation MT5634ZLX/FE Installation in NTGetting Started with Windows NT Open My Computer Control Panel NetworkMT5634ZLX/FE Modem configuration for NT Quick Start MT5634ZLX/FE Windows NT 3.51 Installation Getting Started with Windows NT3.51Open Program Manager Main group Control Panel Network Click StartupClick Do not detect for the network adapter Select Other Requires Disk from Manufacturer Click ContinueNovell NetWare Installation Artisoft Lantastic 6.0 InstallationFor Non-Windows 95/98/NT Systems MS LAN Manager Installation PROTOCOL.INIWindows for Workgroups 3.11 Installation Packet Driver InstallationSelect Enhanced mode NDIS3 for.... then click OK Understanding AT Commands Using the Windows 95/98/NT HyperTerminal ProgramBasic Modem Operation ATEnterDialing and Answering Techniques MT5634ZLX/FE AT Commands, S-Registers and Result Codes How To Use AT Commands AT&K3H0EnterAT Commands, S-Registers, and Result Codes Basic AT Commands Speaker always on AT Commands, S-Registers, and Result Codes DSR always on MT5634ZLX/FE Result Codes Terse Verbose DescriptionRegisters MT5634ZLX/FE Upstream data rates MT5634ZLX/FE Remote Configuration Setup Basic ProcedureChanging the Setup Password Remote Configuration Changing the Remote Escape CharacterMT5634ZLX/FE Troubleshooting Modem Goes Off-Hook and Disables the Telephone Line Modem Does Not Auto-Answer the PhoneTroubleshooting Characters on the Screen Are Doubled No Text Appears on the Screen in Data ModeNo Text Appears on the Screen When in Command Mode Modem Loses the Connection When in UseModem Gets Random Errors in Transmitted Data Occasionally, the Modem Gives a Burst of ErrorsModem Does Not Connect with Another Modem Troubleshooting Installing The Win 95 Driver Over SystemSoft CardWorksEnabling The MT5634ZLX/FE Select Properties Select Drivers in PropertiesCOM Port and IRQ Conflicts WindowsSelect Hkeylocalmachine Highlight the folder MultiMobile-MT5634ZLX-FE-XXXXWindows NT 3.51 and NT Troubleshooting WindowsAdditional References MultiMobile User Guide Appendices Class B Statement FCC Part Appendix a Regulatory ComplianceIndustry Canada FCC Part 68 Telecom AppendicesFAX Branding Statement Canadian Limitations NoticeCommission Decision CTR21 EMC, Safety and Terminal Directive ComplianceNew Zealand Telecom Warning Notice Appendix B V.90 Support TroubleshootingIntroduction Appendix C Comprehensive Driver Notes Introduction Lmndisnif Drivername LMNDIS$NDIS2 Driver for Windows for Workgroups ODI Driver for Workgroups Limited Warranty Appendix D Warranty, Service, and Technical SupportOnline Warranty Registration Technical Support Multi-Tech BBSIf you know the file name If you don’t know the file nameAbout the MultiMobile SoftGSM Cellular Upgrade About the InternetAbout Ordering Accessories SupplyNet Online Ordering InstructionsAppendix E Uninstalling in Windows 95/98 Index IndexMultiMobileUSB User Guide