| Event Id | 20004 |
| Source | ISA Server NNTP Filter |
| Description | H.323 filter: failed to bind IP address %1 for listening. Future H.323 incoming calls will be refused. |
| Event Information |
According to Microsoft : CAUSE : The required port may be in use by a different application SOLUTION : Verify that no other application is using the relevant H.323 ports and then retry. |
| Reference Links | Event id: 20004 Source id: ISA Server NNTP Filter |
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