Article ID: 957683 - Last Review: March 18, 2009 - Revision: 1.1 An IP Gateway can still be used to dial out for a "Play on Phone" request after the IP Gateway is disabledSYMPTOMSIn
an Exchange Server 2007 environment that has Unified Messaging (UM) enabled,
a UM IP gateway can still be used to dial
out for a "Play on Phone" request after the UM IP gateway is disabled. Additionally, the following event is logged in the Application log: Event Type: Information Event Source: MSExchange Unified Messaging Event Category: UMCore Event ID: 1075 Description: The Unified Messaging server received a Play on Phone request from "<user name>". The calling number "<extension>" is dialing "sip:<extension>@<IP address>;user=phone" using the IP/VoIP gateway "<IP address>". CAUSEExchange Server 2007 does not check whether the gateway is
disabled before the Exchange server adds the gateway to the list of
gateways. RESOLUTIONTo resolve this problem, install Update Rollup 7 for
Exchange 2007 Service Pack 1. For more information about Update Rollup 7 for Exchange Server 2007 Service Pack 1, see the following Exchange Help topic: Description of Update Rollup 7 for Exchange Server 2007 Service Pack 1
(http://go.microsoft.com/fwlink/?LinkId=157083)
For more information about how to obtain the latest Exchange service pack or update rollup, see the following Exchange Help topic:How to Obtain the Latest Service Pack or Update Rollup for Exchange 2007
(http://go.microsoft.com/fwlink/?LinkId=152570)
MORE INFORMATIONFor more information about the Disable-UMIPGateway command,
visit the following Microsoft Web site: http://technet.microsoft.com/en-us/library/bb124346.aspx
(http://technet.microsoft.com/en-us/library/bb124346.aspx)
STATUSMicrosoft
has confirmed that this is a problem in the Microsoft products that are listed
in the "Applies to" section. | Article Translations
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