The Check_In_Timestamp_vod__c and Submit_Timestamp_vod__c fields are enabled in the Call object, but instead of dates, the user sees only numbers. Is it supposed to display numbers instead of dates?
This is working as designed. It does not show the actual date or time. For security reasons, these values are not based on the clock, because the clock can be manipulated.
Example, a user sets the clock to an incorrect time, checks-in, then sets the time back. The uptime is shown instead, because it is more reliable from a compliance perspective. It cannot be manipulated. Uptime is the duration of time that the device is on and since it cannot be modified, it is not dependent on the system clock.
CRM Help Documentation: Call Reporting Overview