| 摘要 |
Communicating messages between a cellular mobile radio communicator (100) and a central monitoring station (120) over a communication network that includes a voice channel and a control channel (372). The voice channel conveys data messages and the control channel conveys control messages that manage access to and use of the voice channel. The communicator obtains a message comprising application data, and encodes the message in a sequence of digits associated with a control message to create an encoded message. A remote feature control request is encoded in the sequence of digits associated with the control message to invoke the forwarding of the sequence of digits, including the encoded message, by a telecommunications switching center upon detecting the remote feature control request. The control message and associated sequence of digits are transmitted from the communicator to a base station over the control channel, by passing the voice channel, and then transmitted from the base station to the telecommunications switching center via a satellite communication channel. The telecommunications switching center detects the remote feature control request and forwards the remote feature control request and the encoded message over a communications over a communications channel to the central monitoring station in response to detecting the remote feature control request. The encoded message is decoded at the central monitoring station to retrieve the application specific data.
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