Err Msg: Another Program Is Using the Selected Telephony...

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Article ID: 158370 - View products that this article applies to.
This article was previously published under Q158370
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SYMPTOMS

When you add a second modem to a computer and attempt to use it, you may receive the following error message:
Another program is using the selected telephony device. Try again after other program completes.

CAUSE

This error message occurs if a telephony program was started before the modem was added.

RESOLUTION

You must shut down and restart the computer before you can use the second modem.

MORE INFORMATION

When a modem is used, the following components are loaded into memory:
  • Modem.sys
  • Tapisrv.exe
  • Unimodem.tsp
Until these components are unloaded, a TAPI-aware program cannot use a modem that was added after these components were started.

Properties

Article ID: 158370 - Last Review: November 1, 2006 - Revision: 1.1
APPLIES TO
  • Microsoft Windows NT Server 4.0 Standard Edition
  • Microsoft Windows NT Workstation 4.0 Developer Edition
Keywords: 
kbsetup KB158370

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