Code for registering to network

    QDBusConnection bus = QDBusConnection::systemBus();

    bus.connect("org.ofono",
                myModem,
                "org.ofono.NetworkRegistration",
                "PropertyChanged",
                this,
                SLOT(slotNetworkPropertyChanged(QString,QDBusVariant)));

    QDBusInterface iface("org.ofono",
                         myModem,
                         "org.ofono.NetworkRegistration",
                         bus);



    // attempt to register to the default network
    qDebug() << "registering to default network";
    QDBusReply<void> result = iface.call("Register");
    if (! result.isValid())
    {
        qDebug() << "error registering to network:" << result.error();
    }
    else
    {
        qDebug() << "registered to network";
    }


    QDBusPendingReply<QVariantMap> properties =
            iface.asyncCall("GetProperties");

    QDBusPendingCallWatcher* call = new QDBusPendingCallWatcher(properties);
    connect(call, SIGNAL(finished(QDBusPendingCallWatcher*)),
            this, SLOT(slotGotNetworkProperties(QDBusPendingCallWatcher*)));