| 摘要 |
The invention discloses a method for charging for a call service comprising: intercepting a request message for triggering a pre-paid service transmitted from a switch device visited by a pre-paid calling subscriber to a Service Control Point (SCP), wherein the request message carries information on a called subscriber; querying a Number Portability Database (NPDB) according to the information on the called subscriber, and carrying RN information obtained by query on the called subscriber in the request message and forwarding the request message to the SCP if the called subscriber is an off-net subscriber; charging, by the SCP, the calling subscriber by taking the called subscriber as an off-net subscriber if the RN information on the called subscriber is carried in the request message, and charging the calling subscriber by taking the called subscriber as an on-net subscriber if the RN information on the called subscriber is not carried in the request message. |
