Microsoft KB Archive/304833

= No Sound When You Try to Use the Voice Features of NEC Internal Data/Fax/Voice Modem =

Article ID: 304833

Article Last Modified on 12/1/2007

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APPLIES TO


 * Microsoft Windows XP Home Edition
 * Microsoft Windows XP Professional
 * Microsoft Windows XP Professional x64 Edition

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This article was previously published under Q304833



SYMPTOMS
When you try to use the speakerphone or play a voice message by using an NEC internal data/fax/voice modem, there may not be any sound. Device Manager displays an exclamation point in a yellow circle for the NEC internal modem.



CAUSE
This behavior can occur because the NEC internal modem driver that comes with Windows XP does not support voice capabilities.



RESOLUTION
To resolve this behavior, contact NEC/Mitsubishi to obtain an updated driver for the NEC internal modem.



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.



MORE INFORMATION
The NEC internal modem uses the Conexant chipset. This modem has data, fax and voice capabilities.

The third-party products that are discussed in this article are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, regarding the performance or reliability of these products.

For information about how to contact NEC/Mitsubishi, click the appropriate article number in the following list to view the article in the Microsoft Knowledge Base:

65416 Hardware and Software Third-Party Vendor Contact List, A-K

60781 Hardware and Software Third-Party Vendor Contact List, L-P

60782 Hardware and Software Third-Party Vendor Contact List, Q-Z

Keywords: kb3rdparty kbnofix kbprb kbsound KB304833

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