Multi-Tech Systems MT5634ZPX-PCI-V92 manual Modem Cannot Connect When Dialing

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MultiModemZPX User Guide

6 Solving Problems

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Another expansion card, such as a sound or game card, might be using the same

COM port, memory address, or interrupt request (IRQ) as your modem. See

Chapter 2 for information on verifying the configuration for your operating sys-

tem. Look for conflicts with other devices installed on your computer. Resources

are assigned at power-up by the computer’s BIOS. If the resources assigned to

the MultiModemZPX-PCI conflict with the resources of another device, the re-

sources of the second device have to be changed. Select the port the conflicting

device is on and change it to resolve the conflict. If you need to change switches

or jumpers on the conflicting device, refer to the device’s documentation.

If you have another MultiModemZPX-PCI, install it and try to make a connec-

"tion.

The modem might have a problem beyond the scope of this user guide. If you have another Multi-Tech modem, try swapping modems. If the problem goes away, call Technical Support for assistance (see Appendix D).

The Modem Cannot Connect When Dialing

Reasons why the MultiModemZPX-PCI may fail to connect include:

lack of a physical connection to the telephone line.

a wrong dial tone.

a busy signal.

a wrong number.

no modem at the other end.

a faulty modem, computer, or software at the other end.

incompatibility between modems poor line conditions.

You can narrow the list of possibilities by using extended result codes. Extended re- sult codes are enabled by default. If they have been disabled, include V1X4 in the modem’s initialization string, or in terminal mode enter ATV1X4 and press ENTER. When you dial again, the modem reports the call’s progress.

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If the modem reports NO DIALTONE, check that the modem’s telephone line ca- ble is connected to both the modem’s LINE jack (not the PHONE jack) and the telephone wall jack. If the cable looks secure, try replacing it.

If that doesn’t work, the problem might be in your building’s telephone installa- tion. To test the building installation, plug a telephone into your modem’s telephone wall jack and listen for a dial tone. If you hear a dial tone, your modem might be installed behind a corporate phone system (PBX) with an internal dial tone that sounds different from the normal dial tone. In that case, the modem might not recognize the dial tone and might treat it as an error. Check with your PBX personnel or the PBX system manual to see if you can change the internal dial tone. If you can’t, change your modem’s initialization string to replace X4 with X3, which will cause the modem to ignore dial tones (note, however, that X3 is not allowed in some countries, such as France and Spain).

If the modem reports BUSY, the other number might be busy. Try again later. BUSY can also indicate that you failed to add a 9, prefix to the phone number if you must dial 9 for an outside line.

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Contents Page Record of Revisions Introduction Solving Problems Appendix G Installing Under SCO OpenServer Introduction Introduction What Is in Your Modem Package?Product Description Installation You supply Safety WarningsWhat You Will Need We supplyInstall the MultiModemZPX in your Computer Line Connection Make the External ConnectionsPhone Connection Sound Card and Speaker Connections Microphone ConnectionWindows Install the Modem DriverWindows 98/Me Changing the Windows 95/98/Me COM port assignment Verifying the Windows 95/98/Me Configuration Windows NT If Dial-Up Networking is not installedIf Dial-Up Networking is already installed Verifying the Windows NT Configuration Viewing system resources AT Commands Configure the Modem for Your CountryGlobal Wizard Utility Install and Configure Your Software Operation PhoneTools Features Configuring the ModemConnecting to the Internet Sending a Fax Dial-Up NetworkingReferences AT Commands Registers Result Codes Introduction Answer AT CommandsRepeat Last Command Communication Standard SettingHook Control Echo Command Mode CharactersDS=n Dial Stored Telephone Number Echo Online Data CharactersModulation Handshake Monitor Speaker ModeReturn Online to Data Mode Result Codes Enable/DisableResult Code Options Modem ResetTone Dialing Result Code FormatXON/XOFF Pacing Control Load Factory SettingsAsynchronous Communications Mode Data Terminal Ready DTR ControlStore Dialing Command Test CommandsDisplay Current Settings Store Current Configuration\Jn Data Buffer Control \Bn Transmit Break\Kn Break Control \V n Protocol Result Code \Nn Error Correction Mode Selection\Tn Inactivity Timer \Qn Flow Control Selection42bis Compression Control Adaptive Answer Result Code EnableData Calling Tone View Numbers in BlacklistCommand +DS44=n V.44 Data Compression Command +DCS=x,y Select V.44 Data CompressionData Compression Reporting Subparameters Enable Synchronous Buffered ModeMod Modulation SelectionCommand +PCW= n Call Waiting Enable Modem Hook Flash Modem on Hold EnableCommand +PMHR=n Modem on Hold Initiate PCM Upstream IgnoreQuick Connect Control Command +PMHT=n Modem on Hold Timer#S=x Store Setup Password Command +VCID=n Caller ID SelectionCommand +VDR=x, y Distinctive Ring Report #Sx Enter Setup PasswordCommand %%%ATCR Remote Configuration Escape Sequence Command +++ATCR Escape SequenceRegisters Register Unit Range Default DescriptionValue Rate Value SpeedValue Digital loss Bit 56K modeTerse Verbose Description Result CodesDelayed Remote Configuration Setup Basic ProcedureTo Change the Setup Password To Change the Remote Escape Character Solving Problems Modem Does Not Respond to Commands Modem Cannot Connect When Dialing ModemDisconnects While Online MultiModemZPX User Guide Voice Functions Don’t Work There Are Garbage Characters on the MonitorModem Doesn’t Work with Caller ID Fax and DataSoftware Can’t Run at the Same TimeLoopback Test Voice Mail TestSpeakerphone Test Appendixes FCC Part 68 Telecom Appendix a Regulatory ComplianceFax Branding Statement FCC PartIndustry Canada Canadian Limitations NoticeProtection Against Contact with TNV Circuit New Zealand Telecom Warning Notice EMC, Safety, and R&TTE Directive ComplianceInternational Modem Restrictions South African NoticeAppendix B Technical Specifications Command Buffer Local Analog Loopback Test V.54 Loop Test procedureFigure C-2. Remote digital loopback test Remote Digital Loopback Test V.54 LoopFigure C-3. Local digital loopback test Local Digital Loopback Test V.54 LoopMultiModemZPX User Guide Loopback Tests Online Warranty Registration Service Limited WarrantyCanadian Customers International Distributors International Customers outside U.S.A. and CanadaInternet Sites Technical SupportIdentify the Modem Firmware Upgrade OverviewDocument and Clear Your Stored Paramenters Download the Upgrade FileExtract the Upgrade Files Identify the Current Firmware VersionRestore Your Parameters Upgrade the Modem’s FirmwareStandard Linux Serial Port Definitions InstallationPC port Linux port Using the Modem to Call the Internet Using the Terminal Program Minicom to Verify OperationAnswering Calls Calling the ISPAppendix G Installing Under SCO OpenServer Index MultiModemZPX User Guide Index MultiModemZPX User Guide Index MultiModemZPX User Guide Index

MT5634ZPX-PCI-V92 specifications

The Multi-Tech Systems MT5634ZPX-PCI-V92 is a high-performance V.92 data/fax modem designed to enhance communication capabilities in various applications. This modem is particularly well-suited for commercial and industrial environments where reliable connectivity is crucial.

One of the standout features of the MT5634ZPX-PCI-V92 is its support for the V.92 protocol, which allows for quicker uploads and improved connection speeds compared to earlier standards. It offers download speeds of up to 56 Kbps and upload speeds of up to 48 Kbps, making it an excellent choice for businesses that rely on time-sensitive data transmission. The modem's ability to maintain reliable connections even over noisy telephone lines is a critical aspect of its design, ensuring that users can depend on it for essential communications.

The MT5634ZPX-PCI-V92 also includes advanced error correction and data compression technologies, such as MNP 4 and V.42bis. These technologies work together to ensure data integrity during transfers and to maximize throughput, enabling users to send larger files without compromising quality or speed. Additionally, the modem features a robust fax capability, supporting both analog and digital fax transmissions, which is vital for businesses that frequently deal with document sharing.

A notable characteristic of the MT5634ZPX-PCI-V92 modem is its PCI interface, which allows for easy integration into desktop systems. This plug-and-play capability simplifies installation and setup, making it accessible for users with varying levels of technical expertise. The modem is built on a reliable hardware platform, characterized by its durable components, making it ideal for environments where long-term use is expected.

Moreover, the MT5634ZPX-PCI-V92 comes with comprehensive driver support for various operating systems, including Windows and Linux, ensuring compatibility with a wide range of applications. With its combination of speed, reliability, and ease of use, the Multi-Tech Systems MT5634ZPX-PCI-V92 modem remains a popular option for businesses looking to maintain effective communication channels through dial-up connectivity. Whether for data transmission or faxing, it stands as a solid choice for organizations that require dependable performance in a compact form factor.