What learned this week that you don't even need to have any contacts and if you are logged into Jabber Mobile, you will still receive the "Unread messages might be deleted from the server to timeout.  Please sign in Jabber to check unread messages." ...

I'm also having this issue (opened with TAC under SR 685785832), with some users getting the alert - what seems like constantly, and while the bug only references 11.5.1 - I think this issue is also happening in CUCM version 12.0.1.   I'm running a c...