A G-CDR is used to collect charging information related
to the packet data information for a GPRS mobile in the
GGSN.The List of Traffic Data Volumes attribute of the
G-CDR consists of a set of containers, that can be closed
on certain trigers conditions like,
- Data volume limit
- Time duration limit
- Maximum number of change condition limit
This object when set to some non-zero time value, enables
the G-CDR updation when the time limit is reached.