--- a/src/JackHandler.h	Sat Oct 03 18:20:30 2020 +0200
+++ b/src/JackHandler.h	Sun Oct 04 00:04:28 2020 +0200
@@ -89,8 +89,17 @@
 			return 0;
 		}
 
-		static int processCallback(jack_nframes_t frames, void* arg) {
-			return static_cast<RealTimeContext*> (arg)->processCallback(frames);
+		int syncCallback(jack_transport_state_t state, jack_position_t* position) {
+			std::wcerr << L"syncCallback()" << std::endl;
+			return true;
+		}
+
+		static int processCallback(jack_nframes_t frames, void* instance) {
+			return static_cast<RealTimeContext*> (instance)->processCallback(frames);
+		}
+
+		static int syncCallback(jack_transport_state_t state, jack_position_t* position, void* instance) {
+			return static_cast<RealTimeContext*> (instance)->syncCallback(state, position);
 		}
 
 	} realTimeContext;
@@ -161,6 +170,7 @@
 		realTimeContext.ringBuffer = jack_ringbuffer_create(realTimeContext.RING_BUFFER_SIZE * sizeof (MidiMessage));
 
 		jack_set_process_callback(realTimeContext.jackClient, RealTimeContext::processCallback, &realTimeContext);
+		jack_set_sync_callback(realTimeContext.jackClient, RealTimeContext::syncCallback, &realTimeContext);
 		// TODO: report also other events (connections etc.)
 		jack_set_error_function(jackErrorCallback);
 		jack_set_info_function(jackErrorCallback);
@@ -173,10 +183,18 @@
 		int jackError = jack_activate(realTimeContext.jackClient);
 		if (jackError) throw JackException(L"Could not activate client.");
 
+
+		// Connect to configured destination ports:
+		const char* jackPortName = jack_port_name(realTimeContext.jackPort);
+		for (auto destinationPort : configuration.portsToConnect) {
+			int error = jack_connect(realTimeContext.jackClient, jackPortName, convertor.to_bytes(destinationPort).c_str());
+			if (error) throw JackException(L"Connection to the JACK port failed: " + destinationPort);
+		}
+
 		// Wait for a port connection, because it does not make much sense to send MIDI events nowhere:
 		while (jack_port_connected(realTimeContext.jackPort) < configuration.requiredJackConnections) usleep(10000);
 
-		// TODO: configurable auto-connection to another client/port
+		// TODO: finalize on exceptions
 	}
 
 	void startRelation(const relpipe::common::type::StringX name, std::vector<relpipe::reader::handlers::AttributeMetadata> attributes) override {