Lync 2010: Enable presence status “Appear Offline”
Also in Lync 2010 is the presence status “Appear Offline” available. This presence status is not enabled by default neither in OCS 2007 were you must configure it via the Administrative template “Communicator.adm” which you could import into your Group Policies. Although it is advisable to use the “Do not disturb” status instead of “Appear offline”, since its corporate presence system and not public, however it could be useful when you have PIC enabled on your Lync Environment to communicate with Yahoo!, MSN, etc..
You can enable “Appear Offline” via the Powershell:
Set-CsClientPolicy -EnableAppearOffline $true
Get a list of all Client Policies with the Get command:
Users will need to sign out and back into Lync to see the new status.