USRobotics 33600 There is no audible, Tone when you try to, Respond to incoming, Calls

Page 27

There is no audible

The speaker is turned off; reset the

tone when you try to

modem's settings to the factory settings.

call.

The cables are not correctly connected.

 

 

Check all connections from the

 

telephone wall jack to the modem.

 

There is a problem with the telephone

 

line; check it using a standard telephone

 

set.

 

You are connected to an incompatible

 

telephone network. Refer to the section:

 

‘Utilization Notes’ in this manual.

 

 

The modem does not

Check that the application's auto-answer

respond to incoming

mode is turned on.

calls.

Some office networks use a low voltage

 

 

call signal that the modem cannot

 

recognize. Try connecting the modem to

 

a line that is not part of this type of

 

network.

 

 

The modem connects

Incorrect software configuration. Check

to the remote modem,

that the transmission speed, the parity

but the text received

and the number of stop bits defined in

is illegible.

the software correspond to the settings

 

of the remote modem. Data compression

 

could be used on one of the modems

 

and not on the other. Check the flow

 

control. If required, reconfigure the

 

modem to the factory settings.

 

 

Using a certain

Check the way the application initializes

terminal emulation

the modem :

application, the

$7￿)￿(QWHU!

modem sends back

 

many transmission

This re-initialization includes resetting

errors.

the hardware flow control.

 

If you want to set software flow control

 

on (XON/XOFF), type the following

 

command instead:

 

$7￿)￿.￿￿(QWHU!

 

 

Sportster Winmodem 33600 & x2/56K - User's manual 23

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Contents User’s Manual 1997 Table of Contents Appendix a Technical Reference Appendix B Technical SpecificationsGlossary Limited Warranty Voice FunctionsHow a Modem Works IntroductionQuickly How Does Your Sportster Winmodem 33600 & x2/56K∗ Work ?With Windows Other FeaturesAccurately EfficientlyPackage Contents Installation Sportster Winmodem 33600 & x2/56K InstallationPlug and Play Insert the Modem Into the Computer Installation ProcedurePlug in the power plug and turn the computer on Run the Modem’s Installation Program If you choose Then try This COM port This IRQ Running the Installation Program on a Windows 95 System Installing the Communications Software Page Changing Country Setup under Windows Page Installation Test Using the ModemFactory Settings Resetting the Modem to Factory Settings Remember the Following Points When Using the Modem Remarks on Using the ModemUn-Installing the Modem Page Troubleshooting Problems and SolutionsSymptom Solution Terminal mode, you Send AT commandsModem does not Respond when,There is no audible Tone when you try toUsing a certain ErrorsCorrectly to Connection problemModem Connects itselfConnections are Transmission errorsA fax, errors alter IntercontinentalBefore the Modems Connect Online, but no call Signals but fail toIf your PC reacts as Though you areLink. If your screen displays random or garbage characters During Data TransfersDuring Fax Transmissions If You Are Still Having Problems Page Overview of Voice Functions Voice FunctionsVoice Applications Application SettingsSpeakerphone Implementing Voice FunctionsInput/Output Source Selection Page Appendix a Technical Reference Main AT commandsBasic Command Set E0 Echo OFF E1 Modem displays keyboard commands Displays the following information Ln Controls speaker volume internals onlyFn Sets online local echo of transmitted data ON/OFF Hn Controls ON/OFF hookVn Displays verbal/numeric result codes Xn Sets result code displayed. Default isXn Setting Result CodesFunctions Advanced Command Set Sets Transmit DataTD flow control Enables/disables data compressionSets Error Control ARQ 1200 bps and higher Sets Guard ToneControls Data Set Ready DSR operations Writes current configuration to Nvram templatesSets pulse rotary dial make/break ratio Sets Receive Data RD hardware flow controlRegisters Reg Default FunctionSets the number of seconds the modem Page Bit Value Result Reg Default Function Reg Default Function Page Bit 4 Bit Result BitValue 128 Reserved Page Page Sportster Winmodem X2/56K Specifications Electrical power Safety CE MarkElectromagnetic Compatibility Page Baud rate Analog signalsGlossary Asynchronous transmissionBuffer BitBits BpsDuplex Data modeDigital signals Error correctionLocal Echo Fax modeFallback Flow controlParity ProtocolRemote Echo Terminal Terminal modeSerial transmission Synchronous transmissionXON/XOFF Page Limited Warranty Advised of the Possibility of Such Damages Page 024.1388-00