diff --git a/grc/CMakeLists.txt b/grc/CMakeLists.txt
index caf2660..4665e89 100644
--- a/grc/CMakeLists.txt
+++ b/grc/CMakeLists.txt
@@ -21,6 +21,7 @@
 add_subdirectory(decryption)
 add_subdirectory(demapping)
 add_subdirectory(receiver)
+add_subdirectory(flow_control)
 add_subdirectory(misc_utils)
 install(FILES
     gsm_block_tree.xml
diff --git a/grc/flow_control/CMakeLists.txt b/grc/flow_control/CMakeLists.txt
new file mode 100644
index 0000000..c11943f
--- /dev/null
+++ b/grc/flow_control/CMakeLists.txt
@@ -0,0 +1,22 @@
+# Copyright 2011,2012 Free Software Foundation, Inc.
+#
+# This file is part of GNU Radio
+#
+# GNU Radio is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3, or (at your option)
+# any later version.
+#
+# GNU Radio is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with GNU Radio; see the file COPYING.  If not, write to
+# the Free Software Foundation, Inc., 51 Franklin Street,
+# Boston, MA 02110-1301, USA.
+
+install(FILES
+    gsm_burst_timeslot_splitter.xml DESTINATION share/gnuradio/grc/blocks
+)
diff --git a/grc/flow_control/gsm_burst_timeslot_splitter.xml b/grc/flow_control/gsm_burst_timeslot_splitter.xml
new file mode 100644
index 0000000..91db4db
--- /dev/null
+++ b/grc/flow_control/gsm_burst_timeslot_splitter.xml
@@ -0,0 +1,24 @@
+<?xml version="1.0"?>
+<block>
+  <name>Burst timeslot splitter</name>
+  <key>gsm_burst_timeslot_splitter</key>
+  <import>import grgsm</import>
+  <make>grgsm.burst_timeslot_splitter()</make>
+
+  <sink>
+    <name>in</name>
+    <type>message</type>
+  </sink>
+
+  <source>
+    <name>out</name>
+    <type>message</type>
+    <nports>8</nports>
+    <optional>1</optional>
+  </source>
+
+  <doc>
+Burst timeslot splitter distributes bursts to eight different output ports depending on the timeslots of the bursts. 
+This means timeslot 0 bursts are sent to port out0, timeslot 1 bursts on port out1, and so on.
+  </doc>
+</block>
diff --git a/grc/gsm_block_tree.xml b/grc/gsm_block_tree.xml
index 2503710..1679ad1 100644
--- a/grc/gsm_block_tree.xml
+++ b/grc/gsm_block_tree.xml
@@ -38,6 +38,10 @@
       <block>gsm_tch_f_decoder</block>
     </cat>
     <cat>
+      <name>Flow control</name>
+      <block>gsm_burst_timeslot_splitter</block>
+    </cat>
+    <cat>
       <name>Utilities</name>
       <block>gsm_bursts_printer</block>
       <block>gsm_burst_sink</block>