| 摘要 |
An access control system ( 100 ) for enabling functionality to a portable communications device includes a battery ( 120 ) for providing access to user-agnostic, system-agnostic and radio transceiver-agnostic control data to the portable communications device such as a portable two-way radio transceiver ( 110 ). A data connection ( 150 ) connected between the battery ( 120 ) and the portable two-way radio transceiver ( 110 ) provides control data to radio ( 110 ) and enables access to a predetermined set of device functions.
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