|Source:||MSExchange Unified Messaging|
|Message:||SIP IP gateway “%1” did not respond within %2 seconds to the Session Initiation Protocol (SIP) option request that was sent by the Unified Messaging server. Make sure that the IP gateway has no performance bottleneck. Also, make sure that there are no network connectivity issues between the IP gateway and the Unified Messaging server.|
This Warning event indicates that the expected Session Initiation Protocol (SIP) options status code 200 response was received by the computer that has the Unified Messaging server role installed. This response occurs after the Unified Messaging (UM) server issues an SIP Option request to the SIP peers (VoIP gateway or IP/PBX). However, there was a delay between the request and the response. The SIP request is sent periodically as a mechanism to obtain the operational status of the SIP peers. After the UM server issues the request, the UM server waits for an SIP options response. If the server receives a status code 200 response within 2 seconds, the SIP peers are considered functional and without a connection delay between the UM server and the SIP peers. This event may be caused by performance issues at the SIP peers or by network connectivity issues between SIP peers and the UM server.
To resolve this warning, do one or more of the following:
If you are not already doing so, consider running the tools that Microsoft Exchange offers to help administrators analyze and troubleshoot their Exchange environment. These tools can help you make sure that your configuration is in line with Microsoft best practices. They can also help you identify and resolve performance issues, improve mail flow, and better manage disaster recovery scenarios. Go to the Toolbox node of the Exchange Management Console to run these tools now. For more information about these tools, see Toolbox in the Exchange Server 2007 Help.