MSPS: Error Message When You Start the Call Manager Speakerphone (208741)

SYMPTOMS

When you attempt to start the Microsoft Call Manager speakerphone, you may receive the following error message:

Could not create a DirectSound object: Either the required device is busy, or the DirectSound subsystem is not properly installed.

In addition, if you attempt to take the Call Manager speakerphone off the hook, you may receive the following error message:

You cannot make or answer a call with the speakerphone at this time. You must use another telephone.

CAUSE

This behavior can occur if all of the following conditions are true:

A Creative Labs Sound Blaster 16 PnP sound card is installed in the computer.
The sound driver for your sound card is outdated.
Microsoft DirectX 5.0 is installed on the computer.

RESOLUTION

To resolve this issue, download and install the latest version of the sound driver for your sound card from the following Creative Labs Web site:

http://www.soundblaster.com

If the issue continues to occur, download and install the latest version of Microsoft DirectX from the following Microsoft Web site:

http://www.microsoft.com/directx

For additional information how to download and install DirectX, click the article number below to view the article in the Microsoft Knowledge Base:

179113 How to Download and Install DirectX

MORE INFORMATION

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