I have CUCM 6.1.4 integrated with LDAP. The synchronization was perfectly fine up until now. However, any updates in AD (such as ipPhone number field) does not reflect to its corresponding field in CUCM now. I neither see the "perform full sync now" option on LDAP Directory. It is now showing "cancel sync process". It seems the synchronization is in a stuck state. I did try restarting the "Cisco DirSync" service but that did not help. Has anybody faced such problem? Please suggest.