<div dir="ltr">I'm not too sure of the exact details of that process as I've never had to do it before.  I just found the link and it seemed to be useful.<div><br></div><div>I would make sure to do these changes after hours in a maintenance window to ensure you don't cause any downtime.</div>
</div><div class="gmail_extra"><br><br><div class="gmail_quote">On Tue, Jun 17, 2014 at 4:32 PM, Andy <span dir="ltr"><<a href="mailto:andy.carse@gmail.com" target="_blank">andy.carse@gmail.com</a>></span> wrote:<br>
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    <div>Brian,<br>
      I've had a look and we currently use the sAMAccountName as the
      LDAP Userid, So I'm guessing that to change to use the
      userPrincipleName is a big deal to the existing user accounts?<br>
      Do you know what the likely impact would be?<br>
      Just so I can set expectations. We have uccx integrated with
      Callmanger and the wide use of Extension Mobility for these users.<br>
      <pre cols="72">Regards

Andy</pre><div><div class="h5">
      On 17/06/2014 18:45, Brian Meade wrote:<br>
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      <div dir="ltr">Better link- <a href="https://supportforums.cisco.com/document/63136/how-configure-unified-communication-manager-directory-integration-multi-forest#Active_Directory_Multiple_Forest_Support_Scenario_in_Unified_CM" target="_blank">https://supportforums.cisco.com/document/63136/how-configure-unified-communication-manager-directory-integration-multi-forest#Active_Directory_Multiple_Forest_Support_Scenario_in_Unified_CM</a></div>

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        <br>
        <div class="gmail_quote">On Tue, Jun 17, 2014 at 1:42 PM, Brian
          Meade <span dir="ltr"><<a href="mailto:bmeade90@vt.edu" target="_blank">bmeade90@vt.edu</a>></span>
          wrote:<br>
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            <div dir="ltr"><a href="http://www.cisco.com/c/en/us/support/docs/voice-unified-communications/unified-communications-manager-version-80/111979-ucm-multi-forest-00.html" target="_blank">http://www.cisco.com/c/en/us/support/docs/voice-unified-communications/unified-communications-manager-version-80/111979-ucm-multi-forest-00.html</a><br>

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                  <div class="gmail_quote">On Tue, Jun 17, 2014 at 11:32
                    AM, Andy <span dir="ltr"><<a href="mailto:andy.carse@gmail.com" target="_blank">andy.carse@gmail.com</a>></span>
                    wrote:<br>
                    <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi,<br>
                      I'm wondering if anyone has got some pointers for
                      this.<br>
                      We have a 9.1.2 cluster and the customer has
                      multiple AD forests, which is ok for getting users
                      into Corporate Directory, but not it would seem
                      for actually getting the users to authenticate
                      when they login to say ccmuser or webex on premis.<br>
                      There is a trust between both AD forests as the
                      users can login to pc's whereever they like, but
                      Callmanager logins fail.<br>
                      The users who are in the Authentication OU in Ad
                      are fine.<br>
                      I have raised a TAC, but I thought that someone
                      else may have come across this before, whilst I
                      wait for TAC to respond.<span><font color="#888888"><br>
                          <br>
                          -- <br>
                          Regards<br>
                          <br>
                          Andy<br>
                          <br>
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