diff --git a/libi2pd/NTCP2.cpp b/libi2pd/NTCP2.cpp
index a78b24b0..4cce355d 100644
--- a/libi2pd/NTCP2.cpp
+++ b/libi2pd/NTCP2.cpp
@@ -1023,6 +1023,41 @@ namespace transport
 	void NTCP2Session::SendQueue ()
 	{
 		if (!m_SendQueue.empty ())
+		{
+			auto buf = m_Server.NewNTCP2FrameBuffer ();
+			uint8_t * payload = buf->data ();
+			size_t s = 0;
+			// add I2NP blocks
+			while (!m_SendQueue.empty ())
+			{
+				auto msg = m_SendQueue.front ();
+				size_t len = msg->GetNTCP2Length (); 
+				if (s + len + 3 <= NTCP2_UNENCRYPTED_FRAME_MAX_SIZE) // 3 bytes block header
+				{
+					payload[s] = eNTCP2BlkI2NPMessage; // blk
+					htobe16buf (payload + s + 1, len); // size
+					s += 3;
+					msg->ToNTCP2 ();
+					memcpy (payload + s, msg->GetNTCP2Header (), len);
+					s += len;
+					m_SendQueue.pop_front ();
+				}
+				else if (len + 3 > NTCP2_UNENCRYPTED_FRAME_MAX_SIZE)
+				{
+					LogPrint (eLogError, "NTCP2: I2NP message of size ", len, " can't be sent. Dropped");
+					m_SendQueue.pop_front ();
+				}
+				else
+					break;
+			}
+			// add padding block 
+			s += CreatePaddingBlock (s, payload + s, NTCP2_UNENCRYPTED_FRAME_MAX_SIZE - s);
+			// send
+			SendNextFrame (payload, s);
+			m_Server.DeleteNTCP2FrameBuffer (buf);
+		} 
+
+/*		if (!m_SendQueue.empty ())
 		{
 			std::vector<std::shared_ptr<I2NPMessage> > msgs;
 			size_t s = 0;
@@ -1045,7 +1080,7 @@ namespace transport
 					break;
 			}
 			SendI2NPMsgs (msgs);
-		} 
+		} */
 	}
 
 	size_t NTCP2Session::CreatePaddingBlock (size_t msgLen, uint8_t * buf, size_t len)
diff --git a/libi2pd/NTCP2.h b/libi2pd/NTCP2.h
index ee7ce892..c0aed286 100644
--- a/libi2pd/NTCP2.h
+++ b/libi2pd/NTCP2.h
@@ -217,6 +217,7 @@ namespace transport
 			std::list<std::shared_ptr<I2NPMessage> > m_SendQueue;
 	};
 
+	typedef std::array<uint8_t, NTCP2_UNENCRYPTED_FRAME_MAX_SIZE> NTCP2FrameBuffer; // TODO: remove
 	class NTCP2Server
 	{
 		public:
@@ -235,6 +236,9 @@ namespace transport
 		
 			void Connect(const boost::asio::ip::address & address, uint16_t port, std::shared_ptr<NTCP2Session> conn);
 
+			NTCP2FrameBuffer * NewNTCP2FrameBuffer () { return m_NTCP2FrameBuffersPool.Acquire(); }
+			void DeleteNTCP2FrameBuffer (NTCP2FrameBuffer * buf) { return m_NTCP2FrameBuffersPool.Release(buf); }
+
 		private:
 
 			void Run ();
@@ -258,6 +262,8 @@ namespace transport
 			std::map<i2p::data::IdentHash, std::shared_ptr<NTCP2Session> > m_NTCP2Sessions; 
 			std::list<std::shared_ptr<NTCP2Session> > m_PendingIncomingSessions;
 
+			i2p::util::MemoryPool<NTCP2FrameBuffer> m_NTCP2FrameBuffersPool; // TODO: remove
+
 		public:
 
 			// for HTTP/I2PControl