Err Msg: Another Program Is Using the Selected Telephony... (158370)


The information in this article applies to:

  • Microsoft Windows NT Server 4.0
  • Microsoft Windows NT Workstation 4.0
This article was previously published under Q158370

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.
Modification Type:MajorLast Reviewed:8/8/2001
Keywords:kbsetup KB158370
©2002 Microsoft Corporation. All rights reserved.