diff --git a/slsReceiverSoftware/include/DataProcessor.h b/slsReceiverSoftware/include/DataProcessor.h
index d485b4f90..e29999896 100644
--- a/slsReceiverSoftware/include/DataProcessor.h
+++ b/slsReceiverSoftware/include/DataProcessor.h
@@ -24,7 +24,6 @@ class DataProcessor : private virtual slsReceiverDefs, public ThreadObject {
 	/**
 	 * Constructor
 	 * Calls Base Class CreateThread(), sets ErrorMask if error and increments NumberofDataProcessors
-	 * @param ind self index
 	 * @param f address of Fifo pointer
 	 * @param ftype pointer to file format type
 	 * @param fwenable pointer to file writer enable
@@ -32,7 +31,7 @@ class DataProcessor : private virtual slsReceiverDefs, public ThreadObject {
 	 * @param dataReadycb pointer to data ready call back function
 	 * @param pDataReadycb pointer to arguments of data ready call back function
 	 */
-	DataProcessor(int ind, Fifo*& f, fileFormat* ftype, bool* fwenable, bool* dsEnable,
+	DataProcessor(Fifo*& f, fileFormat* ftype, bool* fwenable, bool* dsEnable,
 						void (*dataReadycb)(uint64_t, uint32_t, uint32_t, uint64_t, uint64_t, uint16_t, uint16_t, uint16_t, uint16_t, uint32_t, uint16_t, uint8_t, uint8_t,
 								char*, uint32_t, void*),
 						void *pDataReadycb);
diff --git a/slsReceiverSoftware/include/DataStreamer.h b/slsReceiverSoftware/include/DataStreamer.h
index 7926d7d7c..1a2201a05 100644
--- a/slsReceiverSoftware/include/DataStreamer.h
+++ b/slsReceiverSoftware/include/DataStreamer.h
@@ -20,14 +20,13 @@ class DataStreamer : private virtual slsReceiverDefs, public ThreadObject {
 	/**
 	 * Constructor
 	 * Calls Base Class CreateThread(), sets ErrorMask if error and increments NumberofDataStreamers
-	 * @param ind self index
 	 * @param f address of Fifo pointer
 	 * @param dr pointer to dynamic range
 	 * @param freq pointer to streaming frequency
 	 * @param timer pointer to timer if streaming frequency is random
 	 * @param sEnable pointer to short frame enable
 	 */
-	DataStreamer(int ind, Fifo*& f, uint32_t* dr, uint32_t* freq, uint32_t* timer, int* sEnable);
+	DataStreamer(Fifo*& f, uint32_t* dr, uint32_t* freq, uint32_t* timer, int* sEnable);
 
 	/**
 	 * Destructor
diff --git a/slsReceiverSoftware/include/Fifo.h b/slsReceiverSoftware/include/Fifo.h
index 846a1ecdb..92305f58c 100644
--- a/slsReceiverSoftware/include/Fifo.h
+++ b/slsReceiverSoftware/include/Fifo.h
@@ -20,12 +20,11 @@ class Fifo : private virtual slsReceiverDefs {
 	/**
 	 * Constructor
 	 * Calls CreateFifos that creates fifos and allocates memory
-	 * @param ind self index
 	 * @param fifoItemSize size of each fifo item
 	 * @param fifoDepth fifo depth
 	 * @param success true if successful, else false
 	 */
-	Fifo(int ind, uint32_t fifoItemSize, uint32_t fifoDepth, bool &success);
+	Fifo(uint32_t fifoItemSize, uint32_t fifoDepth, bool &success);
 
 	/**
 	 * Destructor
diff --git a/slsReceiverSoftware/include/Listener.h b/slsReceiverSoftware/include/Listener.h
index 57d059c05..8a0e57d2c 100644
--- a/slsReceiverSoftware/include/Listener.h
+++ b/slsReceiverSoftware/include/Listener.h
@@ -21,7 +21,6 @@ class Listener : private virtual slsReceiverDefs, public ThreadObject {
 	/**
 	 * Constructor
 	 * Calls Base Class CreateThread(), sets ErrorMask if error and increments NumberofListerners
-	 * @param ind self index
 	 * @param dtype detector type
 	 * @param f address of Fifo pointer
 	 * @param s pointer to receiver status
@@ -31,7 +30,7 @@ class Listener : private virtual slsReceiverDefs, public ThreadObject {
 	 * @param nf pointer to number of images to catch
 	 * @param dr pointer to dynamic range
 	 */
-	Listener(int ind, detectorType dtype, Fifo*& f, runStatus* s, uint32_t* portno, char* e, int* act, uint64_t* nf, uint32_t* dr);
+	Listener(detectorType dtype, Fifo*& f, runStatus* s, uint32_t* portno, char* e, int* act, uint64_t* nf, uint32_t* dr);
 
 	/**
 	 * Destructor
diff --git a/slsReceiverSoftware/include/ThreadObject.h b/slsReceiverSoftware/include/ThreadObject.h
index 29fac7786..5b5639cea 100644
--- a/slsReceiverSoftware/include/ThreadObject.h
+++ b/slsReceiverSoftware/include/ThreadObject.h
@@ -19,8 +19,9 @@ class ThreadObject : private virtual slsReceiverDefs {
  public:
 	/**
 	 * Constructor
+	 * @param ind self index
 	 */
-	ThreadObject();
+	ThreadObject(int ind);
 
 	/**
 	 * Destructor
diff --git a/slsReceiverSoftware/include/UDPInterface.h b/slsReceiverSoftware/include/UDPInterface.h
index e11b869b3..88c447143 100644
--- a/slsReceiverSoftware/include/UDPInterface.h
+++ b/slsReceiverSoftware/include/UDPInterface.h
@@ -27,6 +27,29 @@ class UDPInterface {
 	 *
 	 *  UDPInterface *udp_interface = UDPInterface::create()
 	 *
+	 *  Sequence of Calls from client (upon setting receiver)
+	 *  -setDetectorType
+	 *  -setMultiDetectorSize
+	 *  -setDetectorPositionId
+	 *  -initialize
+	 *  -setUDPPortNumber,setUDPPortNumber2,setEthernetInterface
+	 *	-setFilePath
+	 *	-setFileName
+	 *	-setFileIndex
+	 *	-setFileFormat
+	 *	-setFileWriteEnable
+	 *	-setOverwriteEnable
+	 *	-setFrameIndexEnable
+	 *	-setAcquisitionPeriod
+	 *	-setNumberOfFrames
+	 *	-setAcquisitionTime
+	 *	-setDynamicRange
+	 *	-setFlippedData
+	 *	-setActivate
+	 *	-setTenGigaEnable
+	 *	-setStreamingPort
+	 *	-setDataStreamEnable
+	 *
 	 *
 	 *  supported sequence of method-calls:
 	 *
diff --git a/slsReceiverSoftware/include/UDPRESTImplementation.h b/slsReceiverSoftware/include/UDPRESTImplementation.h
index 3fa6cb88f..2dddf767b 100644
--- a/slsReceiverSoftware/include/UDPRESTImplementation.h
+++ b/slsReceiverSoftware/include/UDPRESTImplementation.h
@@ -115,27 +115,9 @@ public:
 	 * Overridden method
 	 * Shuts down and deletes UDP Sockets
 	 * TCPIPInterface can also call this in case of illegal shutdown of receiver
-	 * @return OK or FAIL
 	 */
-	int shutDownUDPSockets();
+	void shutDownUDPSockets();
 
-	/**
-	 * Overridden method
-	 * Get the buffer-current frame read by receiver
-	 * @param c pointer to current file name
-	 * @param raw address of pointer, pointing to current frame to send to gui
-	 * @param startAcq start index of the acquisition
-	 * @param startFrame start index of the scan
-	 */
-	void readFrame(char* c,char** raw, uint64_t &startAcq, uint64_t &startFrame);
-
-	/**
-	 * Overridden method
-	 * Closes file / all files(data compression involves multiple files)
-	 * TCPIPInterface can also call this in case of illegal shutdown of receiver
-	 * @param i thread index valid for datacompression using root files, -1 for all threads
-	 */
-	void closeFile(int i = -1);
 
 	uint64_t getTotalFramesCaught() const;
 
diff --git a/slsReceiverSoftware/include/UDPStandardImplementation.h b/slsReceiverSoftware/include/UDPStandardImplementation.h
index 933728b47..7b5537775 100644
--- a/slsReceiverSoftware/include/UDPStandardImplementation.h
+++ b/slsReceiverSoftware/include/UDPStandardImplementation.h
@@ -177,7 +177,6 @@ class UDPStandardImplementation: private virtual slsReceiverDefs, public UDPBase
 
 	/**
 	 * Closes file / all files(data compression involves multiple files)
-	 * TCPIPInterface can also call this in case of illegal shutdown of receiver
 	 */
 	void closeFiles();
 
@@ -248,11 +247,6 @@ private:
 	/** Number of Jobs */
 	int numberofJobs;
 
-	//*** mutex ***
-	/** Status mutex */
-	pthread_mutex_t statusMutex;
-
-
 	//** class objects ***
 	/** General Data Properties */
 	GeneralData* generalData;
diff --git a/slsReceiverSoftware/src/DataProcessor.cpp b/slsReceiverSoftware/src/DataProcessor.cpp
index 8c5d61946..13d83ca4e 100644
--- a/slsReceiverSoftware/src/DataProcessor.cpp
+++ b/slsReceiverSoftware/src/DataProcessor.cpp
@@ -31,12 +31,12 @@ uint64_t DataProcessor::RunningMask(0x0);
 pthread_mutex_t DataProcessor::Mutex = PTHREAD_MUTEX_INITIALIZER;
 
 
-DataProcessor::DataProcessor(int ind, Fifo*& f, fileFormat* ftype, bool* fwenable, bool* dsEnable,
+DataProcessor::DataProcessor(Fifo*& f, fileFormat* ftype, bool* fwenable, bool* dsEnable,
 		void (*dataReadycb)(uint64_t, uint32_t, uint32_t, uint64_t, uint64_t, uint16_t, uint16_t, uint16_t, uint16_t, uint32_t, uint16_t, uint8_t, uint8_t,
 				char*, uint32_t, void*),
 		void *pDataReadycb) :
 
-		ThreadObject(),
+		ThreadObject(NumberofDataProcessors),
 		generalData(0),
 		fifo(f),
 		file(0),
@@ -53,8 +53,6 @@ DataProcessor::DataProcessor(int ind, Fifo*& f, fileFormat* ftype, bool* fwenabl
 		rawDataReadyCallBack(dataReadycb),
 		pRawDataReady(pDataReadycb)
 {
-	index = ind;
-
 	if(ThreadObject::CreateThread()){
 		pthread_mutex_lock(&Mutex);
 		ErrorMask ^= (1<<index);
diff --git a/slsReceiverSoftware/src/DataStreamer.cpp b/slsReceiverSoftware/src/DataStreamer.cpp
index 4e26afbb7..f4cb49d2e 100644
--- a/slsReceiverSoftware/src/DataStreamer.cpp
+++ b/slsReceiverSoftware/src/DataStreamer.cpp
@@ -24,8 +24,8 @@ uint64_t DataStreamer::RunningMask(0x0);
 pthread_mutex_t DataStreamer::Mutex = PTHREAD_MUTEX_INITIALIZER;
 
 
-DataStreamer::DataStreamer(int ind, Fifo*& f, uint32_t* dr, uint32_t* freq, uint32_t* timer, int* sEnable) :
-		ThreadObject(),
+DataStreamer::DataStreamer(Fifo*& f, uint32_t* dr, uint32_t* freq, uint32_t* timer, int* sEnable) :
+		ThreadObject(NumberofDataStreamers),
 		generalData(0),
 		fifo(f),
 		zmqSocket(0),
@@ -40,10 +40,6 @@ DataStreamer::DataStreamer(int ind, Fifo*& f, uint32_t* dr, uint32_t* freq, uint
 		firstMeasurementIndex(0),
 		completeBuffer(0)
 {
-	index = NumberofDataStreamers;
-	cprintf(RED, "%d: Number of DataStreamers: %d\n", index, NumberofDataStreamers);
-	//index = ind;
-
 	if(ThreadObject::CreateThread()){
 		pthread_mutex_lock(&Mutex);
 		ErrorMask ^= (1<<index);
diff --git a/slsReceiverSoftware/src/Fifo.cpp b/slsReceiverSoftware/src/Fifo.cpp
index 97e35e215..8513b56cd 100644
--- a/slsReceiverSoftware/src/Fifo.cpp
+++ b/slsReceiverSoftware/src/Fifo.cpp
@@ -14,8 +14,8 @@ using namespace std;
 
 int Fifo::NumberofFifoClassObjects(0);
 
-Fifo::Fifo(int ind, uint32_t fifoItemSize, uint32_t fifoDepth, bool &success):
-		index(ind),
+Fifo::Fifo(uint32_t fifoItemSize, uint32_t fifoDepth, bool &success):
+		index(NumberofFifoClassObjects),
 		memory(0),
 		fifoBound(0),
 		fifoFree(0),
diff --git a/slsReceiverSoftware/src/Listener.cpp b/slsReceiverSoftware/src/Listener.cpp
index dbcaf4f0a..51260460c 100644
--- a/slsReceiverSoftware/src/Listener.cpp
+++ b/slsReceiverSoftware/src/Listener.cpp
@@ -27,8 +27,8 @@ uint64_t Listener::RunningMask(0x0);
 pthread_mutex_t Listener::Mutex = PTHREAD_MUTEX_INITIALIZER;
 
 
-Listener::Listener(int ind, detectorType dtype, Fifo*& f, runStatus* s, uint32_t* portno, char* e, int* act, uint64_t* nf, uint32_t* dr) :
-		ThreadObject(),
+Listener::Listener(detectorType dtype, Fifo*& f, runStatus* s, uint32_t* portno, char* e, int* act, uint64_t* nf, uint32_t* dr) :
+		ThreadObject(NumberofListeners),
 		generalData(0),
 		fifo(f),
 		myDetectorType(dtype),
@@ -50,8 +50,6 @@ Listener::Listener(int ind, detectorType dtype, Fifo*& f, runStatus* s, uint32_t
 		carryOverPacket(0),
 		listeningPacket(0)
 {
-	index = ind;
-
 	if(ThreadObject::CreateThread()){
 		pthread_mutex_lock(&Mutex);
 		ErrorMask ^= (1<<index);
diff --git a/slsReceiverSoftware/src/ThreadObject.cpp b/slsReceiverSoftware/src/ThreadObject.cpp
index b1a7e5107..08a7fc4e2 100644
--- a/slsReceiverSoftware/src/ThreadObject.cpp
+++ b/slsReceiverSoftware/src/ThreadObject.cpp
@@ -12,8 +12,8 @@ using namespace std;
 
 
 
-ThreadObject::ThreadObject():
-		index(0),
+ThreadObject::ThreadObject(int ind):
+		index(ind),
 		alive(false),
 		killThread(false),
 		thread(0)
diff --git a/slsReceiverSoftware/src/UDPRESTImplementation.cpp b/slsReceiverSoftware/src/UDPRESTImplementation.cpp
index df683a946..683afee9f 100644
--- a/slsReceiverSoftware/src/UDPRESTImplementation.cpp
+++ b/slsReceiverSoftware/src/UDPRESTImplementation.cpp
@@ -90,7 +90,11 @@ void UDPRESTImplementation::initialize_REST(){
 	string rest_state = "";
 	std::string answer = "";
 
-	// HORRIBLE FIX to get the main receiver
+	/*
+	 * HORRIBLE FIX to get the main receiver
+	 * TODO: use detID (from baseclass)
+	 *  it i set by the client before calling initialize()
+	 */
 	string filename = getFileName();
 	if (filename.substr(filename.length() - 2) == "d0"){
 	  is_main_receiver = true;
@@ -236,14 +240,18 @@ void UDPRESTImplementation::stopReceiver(){
 	if(status == RUNNING)
 		startReadout();
 
-	while(status == TRANSMITTING)
-		usleep(5000);
+	/**
+	 * while(status == TRANSMITTING)
+	 * usleep(5000);
+	 * This has been changed, you check if all the threads are done processing
+	 *  and set the final status
+	 */
+
 
 	//change status
 	status = IDLE;
 
 	FILE_LOG(logDEBUG) << __AT__ << "exited, status " << endl;
-
 }
 
 
@@ -326,31 +334,6 @@ int UDPRESTImplementation::shutDownUDPSockets(){
 
 
 
-/* FIXME
- * do you really need this, this is called if registerDataCallback() is activated
- * in your gui to get data from receiver. you probably have a different way
- * of reconstructing complete data set from all receivers
- */
-void UDPRESTImplementation::readFrame(char* c,char** raw, uint64_t &startAcq, uint64_t &startFrame){
-	FILE_LOG(logDEBUG) << __AT__ << " called";
-	strcpy(c,"");
-	*raw = NULL;
-}
-
-
-
-
-
-/* FIXME
- * Its called by TCP in case of illegal shut down such as Ctrl + c.
- * Upto you what you want to do with it.
- */
-void UDPRESTImplementation::closeFile(int ithr){
-	FILE_LOG(logDEBUG) << __AT__ << "called for thread " << ithr;
-	FILE_LOG(logDEBUG) << __AT__ << "exited for thread " << ithr;
-}
-
-
 uint64_t UDPRESTImplementation::getTotalFramesCaught() const{   
   FILE_LOG(logDEBUG) << __AT__ << " starting";    
   return (0);
diff --git a/slsReceiverSoftware/src/UDPStandardImplementation.cpp b/slsReceiverSoftware/src/UDPStandardImplementation.cpp
index 18d8e11b4..d403fa1c0 100644
--- a/slsReceiverSoftware/src/UDPStandardImplementation.cpp
+++ b/slsReceiverSoftware/src/UDPStandardImplementation.cpp
@@ -55,9 +55,6 @@ void UDPStandardImplementation::InitializeMembers() {
 	numThreads = 1;
 	numberofJobs = 1;
 
-	//*** mutex ***
-	pthread_mutex_init(&statusMutex,NULL);
-
 	//** class objects ***
 	generalData = 0;
 }
@@ -196,7 +193,7 @@ int UDPStandardImplementation::setDataStreamEnable(const bool enable) {\
 		if (enable) {
 			bool error = false;
 			for ( int i = 0; i < numThreads; ++i ) {
-				dataStreamer.push_back(new DataStreamer(i, fifo[i], &dynamicRange, &frameToGuiFrequency, &frameToGuiTimerinMS, &shortFrameEnable));
+				dataStreamer.push_back(new DataStreamer(fifo[i], &dynamicRange, &frameToGuiFrequency, &frameToGuiTimerinMS, &shortFrameEnable));
 				dataStreamer[i]->SetGeneralData(generalData);
 				// check again
 				if (streamingPort == 0)
@@ -375,8 +372,8 @@ int UDPStandardImplementation::setDetectorType(const detectorType d) {
 
 	//create threads
 	for ( int i=0; i < numThreads; ++i ) {
-		listener.push_back(new Listener(i, myDetectorType, fifo[i], &status, &udpPortNum[i], eth, &activated, &numberOfFrames, &dynamicRange));
-		dataProcessor.push_back(new DataProcessor(i, fifo[i], &fileFormatType, &fileWriteEnable, &dataStreamEnable,
+		listener.push_back(new Listener(myDetectorType, fifo[i], &status, &udpPortNum[i], eth, &activated, &numberOfFrames, &dynamicRange));
+		dataProcessor.push_back(new DataProcessor(fifo[i], &fileFormatType, &fileWriteEnable, &dataStreamEnable,
 				rawDataReadyCallBack,pRawDataReady));
 		if (Listener::GetErrorMask() || DataProcessor::GetErrorMask()) {
 			FILE_LOG (logERROR) << "Error: Could not creates listener/dataprocessor threads (index:" << i << ")";
@@ -467,9 +464,7 @@ int UDPStandardImplementation::startReceiver(char *c) {
 	FILE_LOG(logINFO) << "Ready ...";
 
 	//status
-	pthread_mutex_lock(&statusMutex);
 	status = RUNNING;
-	pthread_mutex_unlock(&(statusMutex));
 
 	//Let Threads continue to be ready for acquisition
 	StartRunning();
@@ -509,9 +504,7 @@ void UDPStandardImplementation::stopReceiver(){
 		usleep(5000);
 	}
 
-	pthread_mutex_lock(&statusMutex);
 	status = RUN_FINISHED;
-	pthread_mutex_unlock(&(statusMutex));
 	FILE_LOG(logINFO)  << "Status: " << runStatusType(status);
 
 
@@ -541,9 +534,7 @@ void UDPStandardImplementation::stopReceiver(){
 	}
 
 	//change status
-	pthread_mutex_lock(&statusMutex);
 	status = IDLE;
-	pthread_mutex_unlock(&(statusMutex));
 
 	FILE_LOG(logINFO)  << "Receiver Stopped";
 	FILE_LOG(logINFO)  << "Status: " << runStatusType(status);
@@ -588,10 +579,7 @@ void UDPStandardImplementation::startReadout(){
 		}
 
 		//set status
-		pthread_mutex_lock(&statusMutex);
 		status = TRANSMITTING;
-		pthread_mutex_unlock(&statusMutex);
-
 		FILE_LOG(logINFO) << "Status: Transmitting";
 	}
 	//shut down udp sockets so as to make listeners push dummy (end) packets for processors
@@ -732,7 +720,7 @@ int UDPStandardImplementation::SetupFifoStructure() {
 	for ( int i = 0; i < numThreads; i++ ) {
 		//create fifo structure
 		bool success = true;
-		fifo.push_back( new Fifo (i,
+		fifo.push_back( new Fifo (
 				(generalData->imageSize) * numberofJobs + (generalData->fifoBufferHeaderSize),
 				fifoDepth, success));
 		if (!success) {