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CALL METERING SERVICESAPPLICATIONS
Ed. 04 3/30Réf. 3EH 21000 BSAA
PRINCIPLES
Meter charging according to the operating phase
Operation Meter charging method
Conversation Metering units received on the line are charged to the subscriber
in conversation with that line.
Park or Hold Metering units received on a parked or holding line are charged
to the subscriber who parked the call.
Retrieve from parking or hold The metering units are charged to whomever activated the ser-
vice. Subsequent metering units are charged to the user who re-
trieved the call.
Automatic forwarding The system does not manage charges for external forwarding;
this is managed by the public network.
Conference Any conference costs are charged to the conference initiator.
Transfer If a transfer takes place on an external call, the cost of the com-
munication is charged to the initial user until the external user is
put through to the new correspondent.
When a call is transferred while ringing or on busy, metering
units are charged to the transfer destination.
No units are charged to the OS when external calls are transfer-
red to a system user; all the metering units are charged to the
destination subscriber.
However, if a call is meant for the OS (by transfer or callback),
the communication is charged to the OS.
Ext/Ext transfer Metering units received after the transfer are charged to the user
who made the second external call.
Transfer failure A callback after a transfer failure is always treated as an inco-
ming communication for the set to which the call is rerouted after
the no-answer time-out.
External forwarding When an internal call is made to a user whose calls are being
diverted to an external number, the metering units are charged
to the forwarded subscriber.
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