| 摘要 |
The invention relates to a method and system of charging short messages in a mobile communication system comprising a mobile switching centre (MSC) in which the short message is transmitted; a terminal device (MS) by means of which the subscriber has been connected to the mobile communication system and by means of which a short message is created; a short message switching centre (SMSC) which has been connected to said mobile switching centre (MSC); and a gateway (GW) which has been connected to said mobile switching centre (MSC) as well as a service data point (SDP) which comprises the subscriber's balance and which has been connected to said gateway (GW). In the method, the short message is directed from the terminal device (MS) via the mobile communication system to said gateway (GW), wherein based on the B number the payment class of the short message and the subscriber are identified, and a subscriber-specific checking of balance and an update to service data point are effected. If the subscriber has got enough balance available for use, the balance is updated as concerns the short message in response, and it is transmitted via the short message switching centre (SMSC) to the receiver. If there is not enough balance left, or the subscriber is not entitled to a prepaid service, a notification is sent from the gateway (GW) to the terminal device (MS). |
