Event ID - 20063

Event Id20063
SourceMicrosoft ISA Firewall H.323 Filter
DescriptionH.323 filter is not configured to register with an H.323 Gatekeeper, attempting to find a gatekeeper using multicast discovery. Inbound H.323 calls will not succeed while the filter is not registered with a gatekeeper. To configure the filter to use a particular gatekeeper, edit the H.323 filter Call Control properties and enter the H.323 gatekeeper to register with.
Event InformationHere is some information from news group posts.
1) This event means the H.323 Filter under the Application Filter section is enabled but the filter does not have a Gatekeeper configured.
To prevent this warning message, either disable the filter (if you do not use Net meeting or have not configured a gatekeeper) or configure a Gatekeeper on the Call Control tab of the properties of the H.323 Filter.

2) I had this error when i stopped the h.323-gatekeeper service and deactivated it respectively setting its status to manual. After restarting the ISA-Server Control Service event 20063 appeared in my event logs. I activated the h.323-gatekeeper service again for starting automatically and the problem was solved. 3)If you dont use conferencing at all, you can just simply switch it off. Go to the ISA Management console, choose your server, then to the Extensions and select Application Filters. Right click on H.323 Filter, select Properties and uncheck Enable this filter checkbox. And dont forget to restart your services.
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