| 摘要 |
A mobile station issues a Call Origination signal via a cellular network overhead control channel to the mobile switching center ("MSC") servicing the cell in which the mobile station is located. The mobile station represents a cellular mobile radiotelephone that has the capability of inserting data content within the dialed digits field of the conventional Call Origination signal. In response to receiving the Call Origination signal, the MSC determines that this mobile station is associated with a "foreign" gateway and issues an Origination Request message to a visitor location register system ("VLR"). The MSC issues a Origination Request message rather than a Qualification Request message because of the prior setting of one or more appropriate call processing trigger(s) at the switch. The dialed digits field of the Origination Request message comprises data content from the dialed digits field of the Call Origination signal received by the MSC. The MSC/VLR forwards the Origination Request message to the distant gateway or home location register ("HLR") associated with the identified mobile station. In this manner, the HLR can receive data content within the dialed digits field and/or the ESN field. The HLR represents a data collection system for collecting the data parsed from the dialed digits field and/or the electronic serial number ("ESN") field. The HLR issues an Origination Request RETURN RESULT with the Authorization Denied parameter. In response, the VLR forwards the Origination Request RETURN RESULT message to the MSC. The MSC responds by denying completion of the call origination and abandoning the processing of that call. |
