diff --git a/src/libs/jrtplib/src/rtpsession.cpp b/src/libs/jrtplib/src/rtpsession.cpp
index 155323d2..e40eb64b 100644
--- a/src/libs/jrtplib/src/rtpsession.cpp
+++ b/src/libs/jrtplib/src/rtpsession.cpp
@@ -221,8 +221,9 @@ int RTPSession::InternalCreate(const RTPSessionParams &sessparams)
 		return status;
 	}
 
+    sources.AcceptAllSSRC(sessparams.GetAcceptAllSSRC());
+
 	// Set the initial receive mode
-	
 	if ((status = rtptrans->SetReceiveMode(sessparams.GetReceiveMode())) < 0)
 	{
 		packetbuilder.Destroy();
diff --git a/src/libs/jrtplib/src/rtpsessionparams.cpp b/src/libs/jrtplib/src/rtpsessionparams.cpp
index db6584f6..732b0baf 100644
--- a/src/libs/jrtplib/src/rtpsessionparams.cpp
+++ b/src/libs/jrtplib/src/rtpsessionparams.cpp
@@ -47,7 +47,8 @@ RTPSessionParams::RTPSessionParams() : mininterval(0,0)
 #else
 	usepollthread = false;
 #endif // RTP_SUPPORT_THREAD
-	maxpacksize = RTP_DEFAULTPACKETSIZE;
+    acceptallssrc = false;
+    maxpacksize = RTP_DEFAULTPACKETSIZE;
 	receivemode = RTPTransmitter::AcceptAll;
 	acceptown = false;
 	owntsunit = -1; // The user will have to set it to the correct value himself
diff --git a/src/libs/jrtplib/src/rtpsessionparams.h b/src/libs/jrtplib/src/rtpsessionparams.h
index 6aa8a715..ce81b144 100644
--- a/src/libs/jrtplib/src/rtpsessionparams.h
+++ b/src/libs/jrtplib/src/rtpsessionparams.h
@@ -70,6 +70,10 @@ public:
 	/** Returns the maximum allowed packet size (default is 1400 bytes). */
 	size_t GetMaximumPacketSize() const					{ return maxpacksize; }
 
+    // Accept packets with any SSRC when using as delay calculator - for network analyzer project
+    void SetAcceptAllSSRC(bool accept)                  { acceptallssrc = accept; }
+    bool GetAcceptAllSSRC() const                       { return acceptallssrc; }
+
 	/** If the argument is \c true, the session should accept its own packets and store 
 	 *  them accordingly in the source table.
 	 */
@@ -212,6 +216,7 @@ public:
 	/** Returns the currently set CNAME, is blank when this will be generated automatically (the default). */
 	std::string GetCNAME() const						{ return cname; }
 private:
+    bool acceptallssrc;
 	bool acceptown;
 	bool usepollthread;
 	size_t maxpacksize;
diff --git a/src/libs/jrtplib/src/rtpsources.cpp b/src/libs/jrtplib/src/rtpsources.cpp
index 7559dc80..0d586eff 100644
--- a/src/libs/jrtplib/src/rtpsources.cpp
+++ b/src/libs/jrtplib/src/rtpsources.cpp
@@ -60,6 +60,8 @@ RTPSources::RTPSources(ProbationType probtype,RTPMemoryManager *mgr) : RTPMemory
 	sendercount = 0;
 	activecount = 0;
 	owndata = 0;
+    acceptallssrc = false;
+
 #ifdef RTP_SUPPORT_PROBATION
 	probationtype = probtype;
 #endif // RTP_SUPPORT_PROBATION
@@ -109,7 +111,7 @@ int RTPSources::CreateOwnSSRC(uint32_t ssrc)
 		owndata = 0; // just to make sure
 		return status;
 	}
-	owndata->SetOwnSSRC();	
+    owndata->SetOwnSSRC();
 	owndata->SetRTPDataAddress(0);
 	owndata->SetRTCPDataAddress(0);
 
@@ -393,7 +395,7 @@ int RTPSources::ProcessRTCPCompoundPacket(RTCPCompoundPacket *rtcpcomppack,const
 						int num = p->GetReceptionReportCount();
 						for (i = 0 ; i < num ; i++)
 						{
-							if (p->GetSSRC(i) == ownssrc) // data is meant for us
+                            if (p->GetSSRC(i) == ownssrc || acceptallssrc) // data is meant for us
 							{
 								gotinfo = true;
 								status = ProcessRTCPReportBlock(senderssrc,p->GetFractionLost(i),p->GetLostPacketCount(i),
@@ -425,7 +427,7 @@ int RTPSources::ProcessRTCPCompoundPacket(RTCPCompoundPacket *rtcpcomppack,const
 						int num = p->GetReceptionReportCount();
 						for (i = 0 ; i < num ; i++)
 						{
-							if (p->GetSSRC(i) == ownssrc)
+                            if (p->GetSSRC(i) == ownssrc || acceptallssrc)
 							{
 								gotinfo = true;
 								status = ProcessRTCPReportBlock(senderssrc,p->GetFractionLost(i),p->GetLostPacketCount(i),
diff --git a/src/libs/jrtplib/src/rtpsources.h b/src/libs/jrtplib/src/rtpsources.h
index d97b244b..5d0079f5 100644
--- a/src/libs/jrtplib/src/rtpsources.h
+++ b/src/libs/jrtplib/src/rtpsources.h
@@ -99,6 +99,9 @@ public:
     /** Deletes the entry for our own SSRC identifier. */
     int DeleteOwnSSRC();
 
+    /** This is needed to allow accept RR when running as delay calculator in network analyzer project **/
+    void AcceptAllSSRC(bool accept) { acceptallssrc = accept; }
+
     /** This function should be called if our own session has sent an RTP packet.
      *  This function should be called if our own session has sent an RTP packet.
      *  For our own SSRC entry, the sender flag is updated based upon outgoing packets instead of incoming packets.
@@ -352,6 +355,7 @@ private:
 
     RTPKeyHashTable<const uint32_t,RTPInternalSourceData*,RTPSources_GetHashIndex,RTPSOURCES_HASHSIZE> sourcelist;
 
+    bool acceptallssrc;
     int sendercount;
     int totalcount;
     int activecount;