My customer wants to migrate its CUCM 4.1.3 to 5.1.3. He has some third-party applications that read CDR's and process the information. I've heard that in version 5.x it's not possible to directly access to CDR in order to obtain the required data but you have to use the CAR tool. Is this true? Or you can use Informix commands via a third-party application to access the information at CDR's?
Thanks for your help.