6.1.7. Call Charge Display on the Digite 
The CDRSTN class of service (call charge display at the telephone
station) is needed to display the call charges at the station.
The call charge display is updated periodically. You can adjust the
time interval between updates throughout the system with the help of
a configurable timer. The call charges are displayed during the call
and at the end of the call.
The charge notification from OpenScape 4000 to the Euro-ISDN telephone
connection occurs during the call and at the end of the call, but not
at the beginning of the connection when it is being switched. The charge
notification occurs if the connection is made under the "Voice" service
and if the Euro-ISDN telephone connection's station has been assigned
the CDRSTN class of service.
If a Digite station has two chargeable connections (for example, during
a consultation hold), the display shows the total of the charges that
apply, regardless of the different types of costs (trunk call, inter-PBX
traffic, or tie trunk traffic).
Primary and secondary calls on Digites are handled as separate connections.
The respective charges are displayed separately. They are not added together.
This type of call occurs when one call is taken over from another call
with the help of call pickup, for example, after call waiting.
- Call charges for internal calls
The costs that result from the length of the call and the cost parameter are shown on the Digite display during an internal call. This is configured for internal connections for each ITR group of a system.
- Call charges for "incoming trunk and tie trunk"
The costs that result from the cost parameter are displayed. This cost parameter is configured for each trunk by Administration (accounting of call charges based on time).
IMPORTANT:
However, this does not mean a general release of the Digite call charge display for incoming connections for any given country-specific analog lines. - Call charges (CDRD) during a networking connection on the basis of
route-dependent cost parameters
- The costs that result from the length of the call and the cost parameter are shown on the Digite display. This is configured for each selected routing trunk group for LCR connections (cost parameter depending on LCR route element).
- LCR expensive warning signaling helps prevent a false call charge display on the Digite caused by an expensive route selection. This means that the "normal" call charges are displayed for a "normal" route and that the expensive warning signaling prevents the wrong call charge display when an expensive route is selected to remote nodes (for example, during break-out).
- Call charges (CDRD) during a connection over the Euro-ISDN trunk
- The charge notification from the Euro-ISDN trunk to OpenScape 4000 to the Euro-ISDN telephone connection occurs at the end of the call and possibly during the call.