3Com pcXset - NBX - PC Getting Started Manual

Also see for PCXSET: Reference guide

Contents

Troubleshooting 213 Use Windows Sound Recorder to verify that you can play the wave files.See the solution under “Full-Duplex Errors”, later in this guide, for moreinformation.DTMF Tones EchoBack to theAnalog Line CardThe pcXset software cannot make external calls through any Analog LineCard port, but calls to internal extensions are successful. Typically, the callfails the first time, but succeeds if you click Redial.DescriptionThis error occurs when DTMF tones echo from the PC speakers back intothe microphone, causing the Analog Line Card to receive each outpulseddigit twice.SolutionSelect Options > Display > Substitute For DTMF Tones. This optionreplaces DTMF tones with clicks. The Analog Line Card ignores the clickswhen they echo back to the TLIM. You can also use headphones toalleviate this problem.Full-Duplex Errors Full-duplex audio is an audio card’s hardware ability to play and recordaudio at the same time.The following related message appears during an audio test ormicrophone test:Error code: [80042004H] Error Message: XXXXX Context: XXXXXThe likely cause of this error is lack of full-duplex audio.A similar message may appear in the log file:ERROR: XXXXX [80042004H]The likely cause of this error is lack of full-duplex audio.DescriptionThis error occurs when the pcXset software attempts to use the audiocard while another application is recording audio. It also happens whenthe audio driver does not support full-duplex audio.You can use Windows Sound Recorder to verify that the audio subsystemsupports full-duplex by running two Windows Sound Recorder