# Make eCall

This sample application demonstrates how to make an emergency (E112) voice call.

1. Implement ResponseCallback interface to receive subsystem initialization status

std::promise<telux::common::ServiceStatus> cbProm = std::promise<telux::common::ServiceStatus>();
    void initResponseCb(telux::common::ServiceStatus status) {
       if(subSystemsStatus == SERVICE_AVAILABLE) {
          std::cout << Call Manager subsystem is ready << std::endl;
       } else if(subSystemsStatus == SERVICE_FAILED) {
          std::cout << Call Manager subsystem initialization failed << std::endl;
       }
       cbProm.set_value(status);
    }
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2. Get the PhoneFactory and Call Manager instance

auto &phoneFactory = PhoneFactory::getInstance();
    auto callManager = phoneFactory.getCallManager(initResponseCb);
    if(callManager == NULL) {
       std::cout << " Failed to get Call Manager instance" << std::endl;
       return -1;
    }
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3. Wait for Call Manager subsystem to be ready

telux::common::ServiceStatus status = cbProm.get_future().get();
    if(status != SERVICE_AVAILABLE) {
       std::cout << Unable to initialize Call Manager subsystem << std::endl;
       return -1;
    }
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4. Optionally, implement IMakeCallCallback interface to receive response for the dial request

class DialCallback : public IMakeCallCallback {
    public:
       void DialCallback::makeCallResponse(ErrorCode error, std::shared_ptr<ICall> call) {
          // will be invoked with response of makeCall operation
       }
    };
    std::shared_ptr<DialCallback> dialCb = std::make_shared<DialCallback> ();
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5. Initialize the data required for eCall such as eCallMsdData,emergencyCategory and eCallVariant

ECallCategory emergencyCategory = ECallCategory::VOICE_EMER_CAT_AUTO_ECALL;
    ECallVariant eCallVariant = ECallVariant::ECALL_TEST;
    
    // Instantiate ECallMsdData structure and populate it with valid information
    // such as Latitude, Longitude etc.
    // Parameter values mentioned here are for illustrative purposes only.
    ECallMsdData eCallMsdData;
    eCallMsdData.msdData.msdVersion = 2;
    eCallMsdData.msdData.messageIdentifier = 1; // Each MSD message should bear a unique id
    eCallMsdData.optionals.recentVehicleLocationN1Present = true;
    eCallMsdData.optionals.recentVehicleLocationN2Present = true;
    eCallMsdData.optionals.numberOfPassengersPresent = 2;
    eCallMsdData.msdData.control.automaticAvtivation = true;
    eCallMsdData.control.testCall = true;
    eCallMsdData.control.positionCanBeTrusted = true;
    eCallMsdData.control.vehicleType = ECallVehicleType::PASSENGER_VEHICLE_CLASS_M1;
    eCallMsdData.msdData.vehicleIdentificationNumber.isowmi = "ECA";
    eCallMsdData.msdData.vehicleIdentificationNumber.isovds = "LLEXAM";
    eCallMsdData.msdData.vehicleIdentificationNumber.isovisModelyear = "P";
    eCallMsdData.msdData.vehicleIdentificationNumber.isovisSeqPlant = "LE02013";
    eCallMsdData.msdData.vehiclePropulsionStorage.gasolineTankPresent = true;
    eCallMsdData.msdData.vehiclePropulsionStorage.dieselTankPresent = false;
    eCallMsdData.vehiclePropulsionStorage.compressedNaturalGas = false;
    eCallMsdData.vehiclePropulsionStorage.liquidPropaneGas = false;
    eCallMsdData.vehiclePropulsionStorage.electricEnergyStorage = false;
    eCallMsdData.vehiclePropulsionStorage.hydrogenStorage = false;
    eCallMsdData.vehiclePropulsionStorage.otherStorage = false;
    eCallMsdData.timestamp = 1367878452;
    eCallMsdData.vehicleLocation.positionLatitude = 123;
    eCallMsdData.vehicleLocation.positionLongitude = 1234;
    eCallMsdData.msdData.vehicleDirection = 4;
    eCallMsdData.recentVehicleLocationN1.latitudeDelta = false;
    eCallMsdData.recentVehicleLocationN1.longitudeDelta = 0;
    eCallMsdData.recentVehicleLocationN2.latitudeDelta = true;
    eCallMsdData.recentVehicleLocationN2.longitudeDelta = 0;
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8. Send a eCall request

int phoneId = 1;
    if(callManager) {
       auto makeCallStatus = callManager->makeECall(phoneId, eCallMsdData, emergencyCategory,
                                                    eCallVariant, dialCb);
       std::cout << "Dial ECall Status:" << (int)makeCallStatus << std::endl;
    }
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Last Published: Jun 24, 2026

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