Microsoft KB Archive/225384

= SBS: Fax Does Not Use Second Modem When the First One Is Busy =

Article ID: 225384

Article Last Modified on 11/1/2006

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APPLIES TO


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

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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.

Additional query words: smallbiz

Keywords: kbbug kbenv kbhardware kbnofix KB225384

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