Call record tables
A unique number that is assigned to this call and all of its call segments.
For conferenced and transferred calls, two (or more) calls are associated with each other. When the entire call is recorded, one CALLID is used to join all of the associated call segments.
In “meet-me” conferences, this may result in a “later” segment of the call starting earlier than the first segment. CALLIDs are not strictly sequential, but will be unique for all calls recorded over the course of a day.