freeswitch/conf/testing/dialplan/default/0013_hangup_testing.xml

<!--
    Test Fail On Single Reject:
    
originate {fail_on_single_reject=UNALLOCATED_NUMBER,hangup_on_single_reject=true}sofia/internal/hup_27@192.168.168.34|sofia/internal/hup_27@192.168.168.34|sofia/internal/hup_1@192.168.168.34|sofia/internal/hup_16@192.168.168.34
park inline
-->

<extension name="hangup">
  <condition field="destination_number" expression="^hup_(\d+)$">
    <action application="hangup" data="$1"/>
  </condition>
</extension>