eCall Functions Overview Clause Samples

eCall Functions Overview. In our system, the IVS modules which are found in the vehicles trigger the eCall communication. The eCall that is generated by the IVS is forwarded to the GSM network. MNOs route this call through GSM network and pass it to the PSTN network. Here, the call is routed through PSTN lines and delivered to the Call Manager in the PSAP. Here, the call is transferred to IP domain in the PSAP. Call Manager demodulates the MSD data. This MSD data contains information about the vehicle, location of the vehicle and the status of the vehicle. The Call Manager forwards the incoming voice call to the Call Taker Service in the operator PC in SIP (Session Initiation Protocol) format and writes the MSD data to the database. The Call Taker Application in the operator PC requests the MSD data from the Call Manager. In the operator PC, MSD is displayed and the vehicle location is shown on the map. Also, the location of the vehicle can be queried from the MNO’s location services. The flow of the eCall is summarized in the figure below.