| 摘要 |
Systems and methods are provided for collecting and managing billable information in a group communication system such as a push-to-talk (PTT) dispatch system. A local node collects the billable event data associated with the group communication and stores it in a flat file database. The billable event data is forwarded from the local node to a centralized node in accordance with a forwarding scheme where it is stored in a more robust relational database. ® KIPO & WIPO 2009
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