| 摘要 |
The invention relates to a method for indicating the charge of a call in a telecommunications network. According to the invention, the subscriber who will be charged for the call is informed of the charge of the call in advance, before the link to the other subscriber is even established. When a subscriber (MSA) wishes to set up a call, he performs normal dialling, and the data dialled by the subscriber is transmitted in the normal manner (1) over the radio path to the fixed network (BSS; MSC1). On the basis of the location (2, 3) of the calling and/or called subscriber, the network estimates the total charge, unit charge (Mk/min) or charge level of the call, of which information is sent to the subscriber either in each case or on the basis of certain criteria. If information on the charge of the call is sent (4) to the subscriber, the call set-up will not be continued until the subscriber gives his permission to do so by a specific acknowledgement message (5). At this stage, the radio network and the fixed network do not allocate any resources. If the subscriber rejects the call and does not send an acknowledgement message, the call set-up is terminated. The invention also relates to a subscriber station to be used in the method. |
