grc/flow_control/gsm_dummy_burst_filter.xml

<?xml version="1.0"?>
<block>
  <name>Dummy Burst Filter</name>
  <key>gsm_dummy_burst_filter</key>
  <import>import grgsm</import>
  <make>grgsm.dummy_burst_filter()</make>

  <sink>
    <name>in</name>
    <type>message</type>
  </sink>

  <source>
    <name>out</name>
    <type>message</type>
    <optional>1</optional>
  </source>

  <doc>
This block filters dummy bursts. 

For more information on dummy bursts, see GSM 05.02.
  </doc>
</block>