voipdialer.h Example File

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 #ifndef VOIPDIALER_H
 #define VOIPDIALER_H

 #include <QObject>

 class VoipDialer : public QObject
 {
     Q_OBJECT
     Q_ENUMS(ConnectionState)
 public:
     VoipDialer(QObject *parent = 0);

 public:
     enum ConnectionState {
         Disconnected = 0,
         Connecting,
         Connected,
         Engaged
     };
     Q_PROPERTY( ConnectionState state READ state NOTIFY stateChanged)
     ConnectionState state() const;

 public slots:
     void dialNumber(const QString& number);
     void hangup();

 signals:
     void stateChanged();

 protected:
     void timerEvent(QTimerEvent* event);
 private:
     void setNewState();
     int timerId;
     ConnectionState m_state;
 };

 #endif