| 摘要 |
A mobile communication apparatus capable of performing group communication between a cellular communication system and a VoIP system includes a first wireless communication module for processing signals of a cellular network corresponding to the cellular communication system, a second wireless communication module for processing signals of a WLAN corresponding to the VoIP system, and a control module coupled to the first wireless communication module and the second wireless communication module, for establishing voice communications with the cellular network and the WLAN through the first wireless communication module and the second wireless communication module, and for exchanging signals of the first wireless communication module and the second wireless communication module when the mobile communication apparatus operates in a first operation mode.
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