3Com 1.024.1644-00 manual Read This First, Possible Solution

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Software Installation

Read This First!

1.Click Windows Start, point to Settings, and click Control Panel.

2.Double-click the Modems icon.

3.Click the Diagnostics tab.

4.Click on the COM port that your modem is assigned to, so that it is highlighted. (If you do not see your modem on this screen, you will need to shut down your computer and uninstall the modem. Reinstall the modem following the instructions in the Installation Guide.)

5.Click More Info. You should see a list of the modem’s ATI commands. Click OK. (If you do not, your modem is not properly installed. Shut down your computer and uninstall the modem. Reinstall the modem following the instructions in the Installation Guide.)

PROBLEM: The computer or software will not recognise the modem.

POSSIBLE SOLUTION

Make sure the modem turned on. An internal modem should turn on automatically when the computer is turned on.

POSSIBLE SOLUTION

You may not be entering modem commands in the proper manner. Type in all upper case (AT) or all lower case (at).

32 56K Voice Faxmodem Internal - User’s Guide

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Contents 56K Voice Faxmodem Internal Page Table of Contents Page Table of Contents Page Welcome to 56K*Information Access Product Features Back Channel Link Rates Upload Speeds Flash ROM Upgradable Determining Available Resources Control PanelWindows 95 version Determining Your Version of WindowsClick Properties Plug and Play Installation How to Prepare for Plug and Play InstallationHow to Insert the Modem into the Computer Serial NumberPage Page Page Page Installing Modem Drivers With Windows Versions 950 and 950a Moving Through the New Hardware Found ScreensPage COM Port Click More Info… Installing Modem Drivers With Windows Version 950b Using the Update Device Driver Wizard ScreensPage COM Port Click More Info… Word about COM Ports and IRQs How to Change the Modem’s Settings Page How to Insert the Modem into the Computer Page Page Page Page Restart Now Software Installation WindowsFlow Control Type of ModemInitialisation String Possible Solution Read This FirstTroubleshooting Possible Solution Possible Solution Possible Solution Troubleshooting Possible Solution Support Resources Are You Still Having Problems? Support ResourcesAnalogue loopback Analogue signalsAnswer mode ApplicationGlossary Binary digit bit Glossary Auto dialBaud rate Bit rateCharacters per second CPS Data modeGlossary Character Class 1Digital signals DefaultDetect phase GlossaryFacsimile Glossary Error controlFax mode Flow controlNonvolatile memory Nvram Local echoModem OFF/ON hookParity Originate modeGlossary Online fallback/fall forward ProtocolStart/stop bits Terminal modeSerial transmission Terminal32 bis 22 bis27ter See online fall back/fall forwardYmodem 42 bisXmodem Ymodem GTechnical Reference Dials the specified phone number, includes the following Technical ReferenceITU-T answer sequence En Sets local echoDisplays the following information Ln Controls speaker volume internals onlyTechnical Reference Hn Controls ON/OFF hook Mn Operates speakerNumeric codes Verbal codesTechnical Reference Sets result code displayed, default is 11/RINGINGTechnical Reference An Enables/disables additional result code subsets see Xn Resets modemDisplays a list of ampersand & commands Cn Controls Carrier Detect CD signalSets Guard Tone Fn Loads a read-only non-programmable factory configurationKn Enables/disables data compression Hn Sets Transmit Data TD flow control see also &Rn300 bps Sets pulse rotary dial make/break ratio No restrictions on the minimum speed for Wn Writes current configuration to Nvram templates Yn Sets break handling64 56K Voice Faxmodem Internal User’s Guide Register Default Function RegistersDefault Function Bit Value ResultTechnical Reference Register Default Function S13Timer S27 See the instructions for S13 S34 Bit Fax Commands +FCLASS=n Sets the mode of operationDisplayed As a number Words Description +FTH=n+FRH=n Regulatory CE ComplianceLimited Warranty