Actiontec electronic IS560LH user manual Common Problems, No Dialtone Error

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Common Problems

No Dialtone Error

Make sure you have connected the phone cable into the right connector on the back of the modem. See “Figure 7: Connecting Devices.”

You may have too many devices connected to the phone line. Remove all other equip- ment.

Your modem may not recognize overseas dialtone. Use the AT command string “ATX0” to have the modem ignore the dialtone before dialing.

Communications Software Does Not Work

The communications software must be configured to the same COM Port and IRQ as the modem.

Does the communications software support this modem? See “Installing and Config- uring Communications Software.”

If you are using different communications software from that supplied with the mo- dem, try installing the supplied software first to verify its functionality.

Nothing Appears On The Screen When I Type

Issue the command ATE1 to the modem to enable command echo. This will let you see what you type.

Cannot Connect at 56K

Note: Current FCC regulations limit your maximum connection rate to 53Kbits/s.

The number you are calling may not support V.90 or K56flex protocols. Some Inter- net Service Providers have special numbers that you must call to make 56K connec- tions. Contact your service provider and ask if the number you are using supports V.90 or K56flex.

Check the maximum speed setting in the Modem Properties window. In Control Panel, double-click the Modems icon. Highlight your modem by clicking once on the icon next to the modem and then click the Properties button. Select the General tab and look at the setting in the Maximum speed box. Make sure this is set to 115200.

You may have other telephone devices connected to the phone line. To achieve the best connection possible, remove all extra devices connected to the telephone line

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Contents Internal Voice/Fax Windows Modem Table of Contents Introduction Do This First For Windows 95 and Windows 98 InstallationsWindows 95 IRQ Resources Dialog Box COM2 Properties Dialog Box For Windows NT 4.0 Installation Proceed to the section titled Installing the ModemDevices Window Hardware Installation Installing The ModemInstalling The Modem Connecting Devices Connecting Devices To The ModemConfiguring Windows Page Page Finish Configuring Windows 95 OEM SR2Page Page Page Next Page Page Page Page Page Page Configuring Windows NT Page Page Page Init String Modem’s Voice FeaturesAT&F&C1&D2W2 Page Windows 95 and Windows TroubleshootingMore Info Panel Uninstalling the Modem Does Not InstallPage Page No Dialtone Error Common ProblemsPage Repeat Last Command AT CommandsAnswer Command +++ Escape sequenceThis command determines Ccitt vs. Bell standard Communication Standard SettingResult Codes Carrier ControlDnDial Online Data Character Echo Command Echo CommandHook Control This command sets speaker volume to low, medium, or high Monitor Speaker VolumeRequest ID Information Modulation Handshake This command turns the speaker on or offSelect Pulse Dialing Return On-line to Data ModeResult Code Control Select Tone DialingResult Code Option VnDCE Response FormatDial Tone Detect Extended Result CodesLong Space Disconnect Busy Tone DetectRecall Stored Profile Auto RetrainDTR Control Data Carrier Detect DCD ControlAuxiliary Relay option 22bis Guard Tone ControlThis Command is effective only for use in Japan Asynchronous Communications ModeLocal Flow Control Selection Pulse Dial Make-to-Break Ratio SelectionData Set Ready DSR Option This command selects DSR actionBelow is an example of a possible output This command is used to display the active profilesSSE \An Zn=x\Bn Modem Port Flow Control Adjust Bits/s Rate Control\Kn Same as 4.Default \Nn \Vn Protocol Result Code \Tn Inactivity TimerData Calling Tone \Xn XON/XOFF Pass ThroughV90=x V.90 Downstream Rate and Control AT Commands for Testing and Debugging Enable/Disable Data CompressionWrite to/Read from DSP Register Line-to-Line LoopbackInitial Transmit Carrier Rate 33600 Tion failedAfter initial negotiation Rate Final Transmit Carrier Rate 33600Final Receive Carrier Rate 33600 Tion rateRegisters Reference Range −127, Ascii decimal Default Carriage return Units Range 0−255 Default UnitsASCIIRange −127, Ascii decimal Default Line feed Units Range −32 Default Backspace UnitsConnection Completion Time-Out Range Default UnitssecondsComma Dial Modifier Time S11 Dtmf Dialing Speed S10 Automatic Disconnect DelayS12 Escape Guard Time S14 General Bit Mapped Options StatusS21 S24 Timer to Control Sleep ModeS22 S30 Inactivity Timer S28 Modulation Enable/DisableS32 S33S38 56K Dial Line Rate default S37 Dial Line Rate defaultS36 ConnectionS43 Auto Mode default 1, range S42 Auto Rate default 1, rangeS48 Lapm Error Control and Feature Negotiation default S40S90 S89 Timer to Control Sleep ModeS91 S92No Carrier Result Code Summary DescriptionPage FCC Part 68 Requirements FCC RegulationsDeclaration of Conformity Canadian Department Of Communications Cdoc