| 摘要 |
A method is disclosed that includes receiving telephony data from four or more mobile communication devices at a communication apparatus. The communication apparatus includes a wireless transceiver and a computer readable storage medium. A mobile switching center (MSC) module is embedded in the computer readable storage medium. The MSC module includes an authentication, authorization, and accounting (AAA) module configured to support generation of call detail records at the communication apparatus. A base station controller (BSC) module and a group call program are also embedded in the computer readable storage medium. The method also includes providing, via the group call program, a group call between the four or more mobile communication devices.
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