diff --git a/src/qamqp/amqp.cpp b/src/qamqp/amqp.cpp
index 752e12a..392a60d 100644
--- a/src/qamqp/amqp.cpp
+++ b/src/qamqp/amqp.cpp
@@ -130,6 +130,7 @@ Exchange * ClientPrivate::createExchange(int channelNumber, const QString &name
 		exchange_, SLOT(_q_method(const QAMQP::Frame::Method &)));
 
 	QObject::connect(connection_, SIGNAL(connected()), exchange_, SLOT(_q_open()));
+	QObject::connect(connection_, SIGNAL(disconnected()), exchange_, SLOT(_q_disconnected()));
 	exchange_->setName(name);
 	return exchange_;
 }
diff --git a/src/qamqp/amqp_channel.cpp b/src/qamqp/amqp_channel.cpp
index 5470928..0697db6 100644
--- a/src/qamqp/amqp_channel.cpp
+++ b/src/qamqp/amqp_channel.cpp
@@ -193,7 +193,10 @@ void ChannelPrivate::_q_open()
 
 void ChannelPrivate::sendFrame( const QAMQP::Frame::Base & frame )
 {
-	client_->pd_func()->network_->sendFrame(frame);
+	if(client_)
+	{
+		client_->pd_func()->network_->sendFrame(frame);
+	}	
 }
 
 
@@ -301,4 +304,11 @@ void ChannelPrivate::openOk( const QAMQP::Frame::Method & frame )
 void ChannelPrivate::setQOS( qint32 prefetchSize, quint16 prefetchCount )
 {
 	client_->pd_func()->connection_->pd_func()->setQOS(prefetchSize, prefetchCount, number, false);
-}
\ No newline at end of file
+}
+
+
+void ChannelPrivate::_q_disconnected()
+{
+	nextChannelNumber_ = 0;
+	opened = false;
+}
diff --git a/src/qamqp/amqp_channel.h b/src/qamqp/amqp_channel.h
index 3d378f7..ac7aaf6 100644
--- a/src/qamqp/amqp_channel.h
+++ b/src/qamqp/amqp_channel.h
@@ -49,6 +49,7 @@ namespace QAMQP
 		friend class ClientPrivate;
 		Q_PRIVATE_SLOT(pd_func(), void _q_open())
 		Q_PRIVATE_SLOT(pd_func(), void _q_method(const QAMQP::Frame::Method & frame))
+		Q_PRIVATE_SLOT(pd_func(), void _q_disconnected())
 	};
 }
 
diff --git a/src/qamqp/amqp_channel_p.h b/src/qamqp/amqp_channel_p.h
index 473f851..0450fdf 100644
--- a/src/qamqp/amqp_channel_p.h
+++ b/src/qamqp/amqp_channel_p.h
@@ -64,6 +64,7 @@ namespace QAMQP
 		void closeOk(const QAMQP::Frame::Method & frame);
 
 		virtual bool _q_method(const QAMQP::Frame::Method & frame);
+		virtual void _q_disconnected();
 		void _q_open();
 		
 		void setQOS(qint32 prefetchSize, quint16 prefetchCount);
diff --git a/src/qamqp/amqp_connection.cpp b/src/qamqp/amqp_connection.cpp
index d6bbe9a..a224d83 100644
--- a/src/qamqp/amqp_connection.cpp
+++ b/src/qamqp/amqp_connection.cpp
@@ -59,9 +59,9 @@ void ConnectionPrivate::startOk()
 	QDataStream stream(&arguments_, QIODevice::WriteOnly);
 	
 	QAMQP::Frame::TableField clientProperties;
-	clientProperties["version"] = "0.0.3";
+	clientProperties["version"] = QString("0.0.3");
 	clientProperties["platform"] = QString("Qt %1").arg(qVersion());
-	clientProperties["product"] = "QAMQP";
+	clientProperties["product"] = QString("QAMQP");
 	QAMQP::Frame::serialize(stream, clientProperties);
 
 	client_->pd_func()->auth_->write(stream);
@@ -185,6 +185,7 @@ void ConnectionPrivate::close( const QAMQP::Frame::Method & frame )
 	qDebug(">> class-id: %d", classId);
 	qDebug(">> method-id: %d", methodId);
 	connected = false;
+	QMetaObject::invokeMethod(pq_func(), "disconnected");
 }
 
 void ConnectionPrivate::close(int code, const QString & text, int classId, int methodId)
diff --git a/src/qamqp/amqp_exchange.cpp b/src/qamqp/amqp_exchange.cpp
index fee987f..0401de5 100644
--- a/src/qamqp/amqp_exchange.cpp
+++ b/src/qamqp/amqp_exchange.cpp
@@ -26,6 +26,8 @@ namespace QAMQP
 #endif
 		}
 	};	
+
+
 }
 
 Exchange::Exchange(int channelNumber, Client * parent /*= 0*/ )
@@ -113,6 +115,10 @@ void Exchange::publish( const QByteArray & message, const QString & key, const Q
 	pd_func()->publish(message, key, mimeType);
 }
 
+void Exchange::publish( const QByteArray & message, const QString & key, const QVariantHash &headers, const QString &mimeType )
+{
+	pd_func()->publish(message, key, mimeType, headers);
+}
 
 //////////////////////////////////////////////////////////////////////////
 
@@ -215,7 +221,7 @@ void ExchangePrivate::remove( bool ifUnused /*= true*/, bool noWait /*= true*/ )
 	sendFrame(frame);
 }
 
-void ExchangePrivate::publish( const QByteArray & message, const QString & key, const QString &mimeType /*= QString::fromLatin1("text/plain")*/ )
+void ExchangePrivate::publish( const QByteArray & message, const QString & key, const QString &mimeType /*= QString::fromLatin1("text/plain")*/, const QVariantHash & headers )
 {
 	QAMQP::Frame::Method frame(QAMQP::Frame::fcBasic, bmPublish);
 	frame.setChannel(number);
@@ -235,7 +241,8 @@ void ExchangePrivate::publish( const QByteArray & message, const QString & key,
 	content.setChannel(number);
 	content.setProperty(Content::cpContentType, mimeType);
 	content.setProperty(Content::cpContentEncoding, "utf-8");
-	content.setProperty(Content::cpMessageId, "0");
+	content.setProperty(Content::cpHeaders, headers);
+	content.setProperty(Content::cpMessageId, "0");	
 	content.setBody(message);
 	sendFrame(content);
 	
@@ -249,4 +256,13 @@ void ExchangePrivate::publish( const QByteArray & message, const QString & key,
 		sendFrame(body);
 	}
 	
-}
\ No newline at end of file
+}
+
+
+void ExchangePrivate::_q_disconnected()
+{
+	ChannelPrivate::_q_disconnected();
+	qDebug() << "Exchange " << name << " disconnected";
+	deleyedDeclare = false;
+	declared = false;
+}
diff --git a/src/qamqp/amqp_exchange.h b/src/qamqp/amqp_exchange.h
index a86b92b..f8318f4 100644
--- a/src/qamqp/amqp_exchange.h
+++ b/src/qamqp/amqp_exchange.h
@@ -51,6 +51,7 @@ namespace QAMQP
 
 		void publish(const QString & message, const QString & key);
 		void publish(const QByteArray & message, const QString & key, const QString &mimeType);
+		void publish(const QByteArray & message, const QString & key, const QVariantHash &headers, const QString &mimeType);
 
 	Q_SIGNALS:
 		void declared();
diff --git a/src/qamqp/amqp_exchange_p.h b/src/qamqp/amqp_exchange_p.h
index 41e78b9..3d5d9cd 100644
--- a/src/qamqp/amqp_exchange_p.h
+++ b/src/qamqp/amqp_exchange_p.h
@@ -24,13 +24,14 @@ namespace QAMQP
 		void declareOk(const QAMQP::Frame::Method & frame);
 		void deleteOk(const QAMQP::Frame::Method & frame);
 
-		void publish(const QByteArray & message, const QString & key, const QString &mimeType = QString::fromLatin1("text/plain"));
+		void publish(const QByteArray & message, const QString & key, const QString &mimeType = QString::fromLatin1("text/plain"), const QVariantHash & headers = QVariantHash());
 
 		QString type;
 		Exchange::ExchangeOptions options;
 		TableField arguments;
 		
 		bool _q_method(const QAMQP::Frame::Method & frame);
+		void _q_disconnected();
 		
 		bool deleyedDeclare;
 		bool declared;
diff --git a/src/qamqp/amqp_frame.cpp b/src/qamqp/amqp_frame.cpp
index 98459c9..1601b73 100644
--- a/src/qamqp/amqp_frame.cpp
+++ b/src/qamqp/amqp_frame.cpp
@@ -423,6 +423,9 @@ void QAMQP::Frame::writeField( QDataStream &s, const QVariant & value )
 	case QVariant::Bool:
 		type = 't';
 		break;
+	case QVariant::ByteArray:
+		type = 'S';
+		break;
 	case QVariant::Int:
 		{
 			int i = qAbs(value.toInt());
@@ -453,12 +456,7 @@ void QAMQP::Frame::writeField( QDataStream &s, const QVariant & value )
 	case QVariant::ULongLong:
 		type = 'l';
 		break;
-	case QVariant::String:
-		/*
-		{
-					QString str = value.toString();
-					type = str.length() > 255 ? 'S' : 's';			
-				}*/
+	case QVariant::String:			
 		type = 'S';
 		break;
 	case QVariant::DateTime:
@@ -516,16 +514,48 @@ qint32 QAMQP::Frame::Content::size() const
 	}
 
 	out << prop_;
-	QHash<int, QVariant>::const_iterator i;
-	for(i = properties_.begin(); i != properties_.end(); ++i)
-	{
-		if(i.value().type() == QVariant::String)
-		{
-			writeField('s', out, i.value());
-		} else {
-			writeField(out, i.value());
-		}
-	}
+
+	if(prop_ & cpContentType)
+		writeField('s', out, properties_[cpContentType]);
+
+	if(prop_ & cpContentEncoding)
+		writeField('s', out, properties_[cpContentEncoding]);
+
+	if(prop_ & cpHeaders)
+		writeField('F', out, properties_[cpHeaders]);
+
+	if(prop_ & cpDeliveryMode)
+		writeField('b', out, properties_[cpDeliveryMode]);
+
+	if(prop_ & cpPriority)
+		writeField('b', out, properties_[cpPriority]);
+
+	if(prop_ & cpCorrelationId)
+		writeField('s', out, properties_[cpCorrelationId]);
+
+	if(prop_ & cpReplyTo)
+		writeField('s', out, properties_[cpReplyTo]);
+
+	if(prop_ & cpExpiration)
+		writeField('s', out, properties_[cpExpiration]);
+
+	if(prop_ & cpMessageId)
+		writeField('s', out, properties_[cpMessageId]);
+
+	if(prop_ & cpTimestamp)
+		writeField('T', out, properties_[cpTimestamp]);
+
+	if(prop_ & cpType)
+		writeField('s', out, properties_[cpType]);
+
+	if(prop_ & cpUserId)
+		writeField('s', out, properties_[cpUserId]);
+
+	if(prop_ & cpAppId)
+		writeField('s', out, properties_[cpAppId]);
+
+	if(prop_ & cpClusterID)
+		writeField('s', out, properties_[cpClusterID]);
 
 	return buffer_.size();
 }
@@ -569,7 +599,7 @@ void QAMQP::Frame::Content::readPayload( QDataStream & in )
 		properties_[cpContentEncoding] = readField('s', in);
 
 	if(flags_ & cpHeaders)
-		properties_[cpHeaders] = readField('f', in);
+		properties_[cpHeaders] = readField('F', in);
 
 	if(flags_ & cpDeliveryMode)
 		properties_[cpDeliveryMode] = readField('b', in);
diff --git a/src/qamqp/amqp_network.cpp b/src/qamqp/amqp_network.cpp
index 08202ed..a34c500 100644
--- a/src/qamqp/amqp_network.cpp
+++ b/src/qamqp/amqp_network.cpp
@@ -146,7 +146,7 @@ void QAMQP::Network::readyRead()
 
 void QAMQP::Network::sendFrame( const QAMQP::Frame::Base & frame )
 {
-	if(socket_->state() == QAbstractSocket::Connected)	
+	if(socket_->state() == QAbstractSocket::ConnectedState)	
 	{
 		QDataStream stream(socket_);
 		frame.toStream(stream);