I checked the compatibility document for CRS...
...as we are planning an in version upgrade/patch to our cucm cluster. This document does not list CUCM 5.1(3g) - it only shows up to 5.1(3e). Our current JTAPI version on the CRS server is 3.1(1.4), according to jtapiversion.txt
Will CRS need an update as well in order to continure inter-operating with the new CUCM version?