This object denotes the maximum number of SGSN changes that will trigger the closure of G-CDR or partial record. When the maximum number is reached, the record is closed and a new partial record is opened. When the value is zero, then for every SGSN change, the G-CDR or partial record is closed. If the value of object is set to '-1', then the number of SGSN changes is not associated with the closure of G-CDR or creation/closure of partial record.