| 摘要 |
Embodiments of the present invention relate to a charging method and system for a Push-to-talk over Cellular (PoC) system. The charging method for a PoC system includes: after sending an initial online charging request to an Online Charging System (OCS), receiving an initial online charging response message that is sent by the OCS and carries a downlink channel type switching trigger variable; monitoring a type of a downlink channel used by a PoC service according to the downlink channel type switching trigger variable; and sending an online charging request to the OCS if switching of the type of the downlink channel used by the PoC service is detected, where the online charging request includes a switched type of the downlink channel. The embodiments of the present invention implement precise and proper charging for a PoC client when the PoC client switches a channel. |
