| 摘要 |
An off-load cellular system (8. 10) controls cellular service between a main cellular system (12. 14) and the off-load cellular system and provides off-load cellular service to a mobile telephone. The off-load cellular system includes a receiver circuit (20, 22. 24), monitoring and receiving an origination message broadcast from the mobile telephone located in the off-load cellular system, and a system controller (30), for receiving the origination message output from the receiver circuit, and for outputting a connect signal indicating whether the off-load cellular service is to be provided to the mobile telephone responsive to the origination message. In addition, the off-load cellular system includes a connection controller (28) for receiving the connect signal output from the system controller, for transmitting to the mobile telephone a voice connect message indicating a frequency to obtain the off-load cellular service responsive to the connect signal and for connecting the mobile telephone with a calling party, providing the off-load cellular service to the mobile telephone.
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