7.9.3.9. GEFE - Managing the CDR parameter 
The METHOD branch is only used for the Rural feature.
There are three methods for this accounting of call charges procedure:
- Method 0 ... No modification of the CDR information from the CO
- Method 1 ... First received pulse is suppressed
- Method 2 ... Second received pulse is suppressed
In the CAR branch the type of call detail recording is set per carrier. The following values are permitted:- TIME ... The CO (carrier) does not transmit any CDR information; metering pulses are determined independently in the OpenScape 4000.
- PULSE ... The pulses received from the CO (carrier) are emitted by the OpenScape 4000 via the SLMAR board.
- MIX ... Pulses are calculated and emitted independently by the OpenScape 4000 at connection setup; if, however, pulses are received from the CO, these are sent via the SLMAR board.