IP phone configuration changes made in ccmadmin, when phones are registered to the subscriber, result in the "CDBLException Dump: cannot update data because the publisher is not available" error message
Ensure that the publisher and subscribers are running the same version with the service packs. If you find any inconsistency, take the necessary steps to bring them to the same version and service pack levels.
Ensure that the SQLsvc passwords are the same on both the publisher and subscriber. To set a common password and private password phrase, try the adminutility. For more information on the adminutility, refer to these documents: