Hello - 
 
Is this a correct summary of CDR architecture with respect to off-cluster transfer of CDR data in CUCM 5.x and above? 
 
 
CUCM 
- writes CDR data to a file that begins with a ¿_¿.  This character prevents the CDR Agent from transferring the file until writing is complete..
- Generates one file every <n> minutes where n is between 1 and 1440 inclusive (CDR File Time Interval in System -> Enterprise Parameters) by removing ¿_¿ from the filename 
 
CDR Agent 
- polls for new files every 6 seconds. 
- transfers files not beginning with ¿_¿ to the CDR Repository Node (Publisher) via SFTP
- deletes the local copy of the file 
 
CDR Repository Manager 
- archives CDR files to a ¿preserve¿ directory 
- after CDR Loading and transfer to billing server are complete, file moved to ¿processed¿ directory
- transfers the file to external billing server specified in Tools -> CDR Management Configuration -> Application Billing Server Parameters
 
TIA


Mark