One of our users was in concall (he was taken in concall by other party). His call was dropped and the error was displayed as "CM down Features disabled". On Cisco site, they stated that this error comes while making calls. But we saw it immediately after dropping the call. On callmanager, only device unregistered error log has got generated for that IP Phone. What could be the cause? can anything be traceable on CCM server side? Below is link I found on Cisco
http://www.cisco.com/en/US/products/sw/voicesw/ps556/products_tech_note09186a0080991166.shtml
