This is about CMS dial rule. I believe you have multidomain Lync environment. The Outbound calls  in  CMS for Lync is for example: yourdomain.com   You are getting lync mras conference resolution failed -- no Lync dial plan rule for pool URI sip:Lync...

Apart from re-routing CSS, you cannot forget about SIP Route Pattern (IPAddress Routing) using IPV4  address of  Webex Application Point and pointing at SIP trunk/RL of Webex Application Point.Check Planning Guide for configuring CUCM.http://www.cisc...

In  Directory Service Configuration for Hostname for Active Directory Service*you should specify FQDN of App Server. If there is an IP address the above error occurs.Please find below MPDS.log which explains it all.2010-11-17 14:00:06,409 [INFO ,DirS...