SBS: Fax Does Not Use Second Modem When the First One Is Busy (225384)



The information in this article applies to:

  • Microsoft BackOffice Small Business Server 4.0
  • Microsoft BackOffice Small Business Server 4.0a
  • Microsoft BackOffice Small Business Server 4.5

This article was previously published under Q225384

SYMPTOMS

When you have two or more compatible modems configured to use the Microsoft Fax service and the first modem is in use by another service, other fax jobs may be held until the first modem becomes available.

CAUSE

This behavior can occur if you install a modem and the Unimodem file that keeps the corresponding Telephony API (TAPI) line open for monitoring is not installed. Without this file, the second modem does not receive notification of events on the corresponding line.

RESOLUTION

Contact the manufacturer of your modem to obtain an updated firmware revision and Unimodem driver files for use with Small Business Server (SBS). Reinstall the modem with those files.

STATUS

This is a confirmed problem in SBS versions 4.0, 4.0a, and 4.5.

Modification Type:MajorLast Reviewed:3/8/2006
Keywords:kbbug kbenv kbHardware kbnofix KB225384