diff --git a/libs/jrtplib/src/rtppacketbuilder.cpp b/libs/jrtplib/src/rtppacketbuilder.cpp
index 5d2a259401..b1f787a95b 100644
--- a/libs/jrtplib/src/rtppacketbuilder.cpp
+++ b/libs/jrtplib/src/rtppacketbuilder.cpp
@@ -208,6 +208,14 @@ int RTPPacketBuilder::BuildPacket(const void *data,size_t len,
 	return PrivateBuildPacket(data,len,pt,mark,timestampinc,false);
 }
 
+int RTPPacketBuilder::BuildPacket(const void *data,size_t len,
+                u_int8_t pt,bool mark,u_int32_t timestampinc, u_int32_t mseq)
+{
+	if (!init)
+		return ERR_RTP_PACKBUILD_NOTINIT;
+	return PrivateBuildPacket(data,len,pt,mark,timestampinc,false,0,0,0,mseq);
+}
+
 int RTPPacketBuilder::BuildPacketEx(const void *data,size_t len,
                   u_int16_t hdrextID,const void *hdrextdata,size_t numhdrextwords)
 {
@@ -234,9 +242,9 @@ int RTPPacketBuilder::BuildPacketEx(const void *data,size_t len,
 
 int RTPPacketBuilder::PrivateBuildPacket(const void *data,size_t len,
 	                  u_int8_t pt,bool mark,u_int32_t timestampinc,bool gotextension,
-	                  u_int16_t hdrextID,const void *hdrextdata,size_t numhdrextwords)
+	                  u_int16_t hdrextID,const void *hdrextdata,size_t numhdrextwords, u_int32_t mseq)
 {
-	RTPPacket p(pt,data,len,seqnr,timestamp,ssrc,mark,numcsrcs,csrcs,gotextension,hdrextID,
+	RTPPacket p(pt,data,len, mseq ? mseq : seqnr,timestamp,ssrc,mark,numcsrcs,csrcs,gotextension,hdrextID,
 	            (u_int16_t)numhdrextwords,hdrextdata,buffer,maxpacksize);
 	int status = p.GetCreationError();
 
@@ -260,7 +268,9 @@ int RTPPacketBuilder::PrivateBuildPacket(const void *data,size_t len,
 	numpayloadbytes += (u_int32_t)p.GetPayloadLength();
 	numpackets++;
 	timestamp += timestampinc;
-	seqnr++;
+	if (mseq) {
+		seqnr++;
+	}
 
 
 	return 0;
diff --git a/libs/jrtplib/src/rtppacketbuilder.h b/libs/jrtplib/src/rtppacketbuilder.h
index 5f60d3c163..1129d8095b 100644
--- a/libs/jrtplib/src/rtppacketbuilder.h
+++ b/libs/jrtplib/src/rtppacketbuilder.h
@@ -61,6 +61,8 @@ public:
 	int BuildPacket(const void *data,size_t len);
 	int BuildPacket(const void *data,size_t len,
 	                u_int8_t pt,bool mark,u_int32_t timestampinc);
+	int BuildPacket(const void *data,size_t len,
+	                u_int8_t pt,bool mark,u_int32_t timestampinc, u_int32_t mseq);
 	int BuildPacketEx(const void *data,size_t len,
 	                  u_int16_t hdrextID,const void *hdrextdata,size_t numhdrextwords);
 	int BuildPacketEx(const void *data,size_t len,
@@ -87,7 +89,7 @@ public:
 private:
 	int PrivateBuildPacket(const void *data,size_t len,
 	                  u_int8_t pt,bool mark,u_int32_t timestampinc,bool gotextension,
-	                  u_int16_t hdrextID = 0,const void *hdrextdata = 0,size_t numhdrextwords = 0);
+	                  u_int16_t hdrextID = 0,const void *hdrextdata = 0,size_t numhdrextwords = 0,  u_int32_t mseq = 0);
 
 	RTPRandom rtprnd;	
 	size_t maxpacksize;
diff --git a/libs/jrtplib/src/rtpsession.cpp b/libs/jrtplib/src/rtpsession.cpp
index 6cdd63ae1e..ec9645317a 100644
--- a/libs/jrtplib/src/rtpsession.cpp
+++ b/libs/jrtplib/src/rtpsession.cpp
@@ -508,7 +508,7 @@ int RTPSession::SendPacket(const void *data,size_t len)
 }
 
 int RTPSession::SendPacket(const void *data,size_t len,
-                u_int8_t pt,bool mark,u_int32_t timestampinc)
+                u_int8_t pt,bool mark,u_int32_t timestampinc, u_int32_t mseq)
 {
 	int status;
 
@@ -516,7 +516,7 @@ int RTPSession::SendPacket(const void *data,size_t len,
 		return ERR_RTP_SESSION_NOTCREATED;
 	
 	BUILDER_LOCK
-	if ((status = packetbuilder.BuildPacket(data,len,pt,mark,timestampinc)) < 0)
+	if ((status = packetbuilder.BuildPacket(data,len,pt,mark,timestampinc, mseq)) < 0)
 	{
 		BUILDER_UNLOCK
 		return status;
diff --git a/libs/jrtplib/src/rtpsession.h b/libs/jrtplib/src/rtpsession.h
index 07e1f6197e..274bb73c3e 100644
--- a/libs/jrtplib/src/rtpsession.h
+++ b/libs/jrtplib/src/rtpsession.h
@@ -85,7 +85,7 @@ public:
 
 	int SendPacket(const void *data,size_t len);
 	int SendPacket(const void *data,size_t len,
-	                u_int8_t pt,bool mark,u_int32_t timestampinc);
+	                u_int8_t pt,bool mark,u_int32_t timestampinc, u_int32_t mseq = 0);
 	int SendPacketEx(const void *data,size_t len,
 	                  u_int16_t hdrextID,const void *hdrextdata,size_t numhdrextwords);
 	int SendPacketEx(const void *data,size_t len,