http://blogs.technet.com/kpalmvig/archive/2009/01/07/troubleshoot-office-communicator-problem-verifying-certificate.aspxYou encounter the following error when trying to connect to the pool with Office Communicator: This is caused by the certificate on the server not matching the host name you are trying to connect to. Typically this is because the _sipinternaltls SRV recorden-USCommunityServer 2.1 SP1 (Build: 61025.2)http://blogs.technet.com/kpalmvig/archive/2009/01/07/troubleshoot-office-communicator-problem-verifying-certificate.aspx#3185477Mon, 19 Jan 2009 03:47:45 GMTd5e57398-b9ef-4490-9955-07cbb4e4a80d:3185477Fique por dentro Communicator &raquo; Blog Archive &raquo; Karsten Palmvig&#39;s blog : Troubleshoot: Office Communicator problem &#8230;<p>PingBack from <a rel="nofollow" target="_new" href="http://fiquepordentro.net/communicator/2009/01/16/karsten-palmvigs-blog-troubleshoot-office-communicator-problem-2/">http://fiquepordentro.net/communicator/2009/01/16/karsten-palmvigs-blog-troubleshoot-office-communicator-problem-2/</a></p>