I've done to transfer CDR data to another server (billing server) by using sftp. Now I would like to know how to import these files to SQL Server 2008.
Please advise and appreciate your help.
CDRs are just CSVs, so you need to go ask in a SQL Server forum on how to do this.
NOTE: The CDR format tends to gain fields between CUCM versions (even minor versions) so you should make sure your import process can handle extra/unexpected fields.