diff --git a/README.md b/README.md
index ff2dfc1..31eba28 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 QAMQP
 =============
-Qt4 implementation of AMQP 0.9.1.
+Qt4/Qt5 implementation of AMQP 0.9.1.
 
 Implement
 ------------
diff --git a/src/main.cpp b/src/main.cpp
index a204a39..c6b9f99 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -2,7 +2,6 @@
 
 #include "QamqpApp.h"
 
-
 int main(int argc, char *argv[])
 {
     QAMQP::samples::QamqpApp qamqpApp(argc, argv);
diff --git a/src/qamqp/amqp_connection.cpp b/src/qamqp/amqp_connection.cpp
index 987baea..7ac94fb 100644
--- a/src/qamqp/amqp_connection.cpp
+++ b/src/qamqp/amqp_connection.cpp
@@ -4,11 +4,11 @@
 #include "amqp_p.h"
 #include "amqp_frame.h"
 
-
 #include <QCoreApplication>
 #include <QDebug>
 #include <QDataStream>
 #include <QVariant>
+#include <QTimer>
 
 using namespace QAMQP;
 
@@ -53,6 +53,9 @@ void ConnectionPrivate::init(Client * parent)
 {
 	pq_func()->setParent(parent);
 	client_ = parent;
+	heartbeatTimer_ = new QTimer(parent);
+	QObject::connect(heartbeatTimer_, SIGNAL(timeout()), 
+		pq_func(), SLOT(_q_heartbeat()));
 }
 
 void ConnectionPrivate::startOk()
@@ -91,7 +94,7 @@ void ConnectionPrivate::tuneOk()
 
 	stream << qint16(0); //channel_max
 	stream << qint32(FRAME_MAX); //frame_max
-	stream << qint16(0); //heartbeat
+	stream << qint16(heartbeatTimer_->interval() / 1000); //heartbeat
 
 	frame.setArguments(arguments_);
 	client_->pd_func()->network_->sendFrame(frame);
@@ -157,10 +160,21 @@ void ConnectionPrivate::tune( const QAMQP::Frame::Method & frame )
 	stream >> channel_max;
 	stream >> frame_max;
 	stream >> heartbeat;
+
 	qDebug(">> channel_max: %d", channel_max);
 	qDebug(">> frame_max: %d", frame_max);
 	qDebug(">> heartbeat: %d", heartbeat);
 
+	if(heartbeatTimer_)
+	{
+		heartbeatTimer_->setInterval(heartbeat * 1000);
+		if(heartbeatTimer_->interval())
+		{
+			heartbeatTimer_->start()
+		} else {
+			heartbeatTimer_->stop()
+		}
+	}
 	tuneOk();
 	open();
 }
@@ -215,12 +229,17 @@ void ConnectionPrivate::closeOk()
 	QAMQP::Frame::Method frame(QAMQP::Frame::fcConnection, miCloseOk);	
 	connected = false;
 	client_->pd_func()->network_->sendFrame(frame);
+	
 }
 
 void ConnectionPrivate::closeOk( const QAMQP::Frame::Method & )
 {
 	connected = false;
 	QMetaObject::invokeMethod(pq_func(), "disconnected");
+	if(heartbeatTimer_)
+	{
+		heartbeatTimer_->stop()
+	}
 }
 
 
@@ -239,7 +258,6 @@ void ConnectionPrivate::setQOS( qint32 prefetchSize, quint16 prefetchCount, int
 	client_->pd_func()->network_->sendFrame(frame);	
 }
 
-
 bool ConnectionPrivate::_q_method( const QAMQP::Frame::Method & frame )
 {
 	if(frame.methodClass() != QAMQP::Frame::fcConnection)
@@ -281,6 +299,12 @@ bool ConnectionPrivate::_q_method( const QAMQP::Frame::Method & frame )
 	return true;
 }
 
+void ConnectionPrivate::_q_heartbeat()
+{
+	QAMQP::Frame::Heartbeat frame;	
+	client_->pd_func()->network_->sendFrame(frame);
+}
+
 //////////////////////////////////////////////////////////////////////////
 
 Connection::Connection( Client * parent /*= 0*/ )
diff --git a/src/qamqp/amqp_connection.h b/src/qamqp/amqp_connection.h
index 703f133..3ab0e6d 100644
--- a/src/qamqp/amqp_connection.h
+++ b/src/qamqp/amqp_connection.h
@@ -46,6 +46,7 @@ namespace QAMQP
 		friend class ClientPrivate;
 		friend class ChannelPrivate;
 		Q_PRIVATE_SLOT(pd_func(), void _q_method(const QAMQP::Frame::Method & frame))
+		Q_PRIVATE_SLOT(pd_func(), void _q_heartbeat())
 	};
 }
 
diff --git a/src/qamqp/amqp_connection_p.h b/src/qamqp/amqp_connection_p.h
index 1fe0f74..cbf2032 100644
--- a/src/qamqp/amqp_connection_p.h
+++ b/src/qamqp/amqp_connection_p.h
@@ -5,6 +5,8 @@
 
 #include <QPointer>
 
+class QTimer;
+
 namespace QAMQP
 {
 	class Client;
@@ -39,12 +41,14 @@ namespace QAMQP
 		void close(const QAMQP::Frame::Method & frame);
 		void closeOk(const QAMQP::Frame::Method & frame);
 		bool _q_method(const QAMQP::Frame::Method & frame);
+		void _q_heartbeat();
 
 		void setQOS(qint32 prefetchSize, quint16 prefetchCount, int channel, bool global);
 
 		QPointer<Client> client_;
 		bool closed_;
 		bool connected;
+		QPointer<QTimer> heartbeatTimer_;
 
 		Connection * const pq_ptr;
 
diff --git a/src/qamqp/amqp_frame.cpp b/src/qamqp/amqp_frame.cpp
index fc02ce4..884a750 100644
--- a/src/qamqp/amqp_frame.cpp
+++ b/src/qamqp/amqp_frame.cpp
@@ -151,7 +151,7 @@ QVariant QAMQP::Frame::readField( qint8 valueType, QDataStream &s )
 {
 	QVariant value;
 	QByteArray tmp;
-	qint8 nameSize_;
+	qint8 nameSize_ = 0;
 	char octet = 0;	
 
 	switch(valueType)
@@ -238,7 +238,11 @@ QVariant QAMQP::Frame::readField( qint8 valueType, QDataStream &s )
 		s >> nameSize_;
 		tmp.resize(nameSize_);
 		s.readRawData(tmp.data(), tmp.size());
+		#if QT_VERSION < 0x050000
 		value = QString::fromAscii(tmp.data(), nameSize_);
+		#else // For Qt5
+		value = QString::fromLatin1(tmp.data(), nameSize_);
+		#endif
 		break;
 	case 'S':
 		{
@@ -247,7 +251,11 @@ QVariant QAMQP::Frame::readField( qint8 valueType, QDataStream &s )
 			tmp.resize(length_);
 		}		
 		s.readRawData(tmp.data(), tmp.size());
-		value = QString::fromAscii(tmp.data(), tmp.size());
+		#if QT_VERSION < 0x050000
+		value = QString::fromAscii(tmp.data(), nameSize_);
+		#else // For Qt5
+		value = QString::fromLatin1(tmp.data(), nameSize_);
+		#endif
 		break;
 	case 'A':
 		{
@@ -394,14 +402,22 @@ void QAMQP::Frame::writeField( qint8 valueType, QDataStream &s, const QVariant &
 		{
 			QString str = value.toString();
 			s << quint8(str.length());
+			#if QT_VERSION < 0x050000
 			s.writeRawData(str.toAscii().data(), str.length());
+			#else // For Qt5
+			s.writeRawData(str.toLatin1().data(), str.length());
+			#endif			
 		}
 		break;
 	case 'S':
 		{
 			QString str = value.toString();
 			s << quint32(str.length());
+			#if QT_VERSION < 0x050000
 			s.writeRawData(str.toAscii().data(), str.length());
+			#else // For Qt5
+			s.writeRawData(str.toLatin1().data(), str.length());
+			#endif
 		}
 		break;
 	case 'A':
@@ -690,3 +706,11 @@ qint32 QAMQP::Frame::ContentBody::size() const
 {
 	return body_.size();
 }
+
+//////////////////////////////////////////////////////////////////////////
+
+QAMQP::Frame::Heartbeat::Heartbeat() : Base(ftHeartbeat) {}
+
+void QAMQP::Frame::Heartbeat::readPayload(QDataStream & stream) {}
+void QAMQP::Frame::Heartbeat::writePayload(QDataStream & stream) const {}
+
diff --git a/src/qamqp/amqp_frame.h b/src/qamqp/amqp_frame.h
index bf861aa..e813b46 100644
--- a/src/qamqp/amqp_frame.h
+++ b/src/qamqp/amqp_frame.h
@@ -361,6 +361,24 @@ namespace QAMQP
 		private:
 			QByteArray body_;
 		};
+
+		/*!
+		@brief Class for working with heartbeat frames.
+		@detailed Implement frame for heartbeat send.		
+		*/
+		class Heartbeat : public Base
+		{
+		public:
+			/*!
+			Heartbeat class constructor.
+			@detailed Construct frame class for sending.
+			*/
+			Heartbeat();			
+
+		protected:
+			void writePayload(QDataStream & stream) const;
+			void readPayload(QDataStream & stream);
+		};
 	}
 }
 
diff --git a/src/qamqp/amqp_network.cpp b/src/qamqp/amqp_network.cpp
index c3dcb74..07ec9dd 100644
--- a/src/qamqp/amqp_network.cpp
+++ b/src/qamqp/amqp_network.cpp
@@ -141,6 +141,11 @@ void QAMQP::Network::readyRead()
 					emit body(frame.channel(), frame.body());
 				}
 				break;
+			case QAMQP::Frame::ftHeartbeat:
+				{
+					qDebug("Heartbeat");
+				}
+				break;
 			default:
 				qWarning("Unknown frame type");
 			}
diff --git a/src/test.h b/src/test.h
index 217cf99..177a69f 100644
--- a/src/test.h
+++ b/src/test.h
@@ -16,7 +16,7 @@ public:
 private slots:
 
 	void declared();
-	void newMessage();
+	void newMessage();	
 
 private:
 	QPointer<QAMQP::Client> client_;