[Freeswitch-users] unable to get transfer_on_fail to work

Gabriel Kuri gkuri at ieee.org
Wed Nov 25 21:42:11 MSK 2015

I can't seem to get transfer_on_fail to work. I'm not sure what I'm doing
wrong, it just doesn't transfer to the transfer_on_fail extension. The
dialplan is below.

The idea is to set leg_progress_timeout = 3, so that if the device isn't
responding to INVITEs, we use transfer_on_fail with the cause
PROGRESS_TIMEOUT to send the call somewhere else. But transfer_on_fail
never seems to get executed when we test it out. The FS logs show that
we're hitting PROGRESS_TIMEOUT when the device doesn't respond to INVITEs,
so I'm pretty sure we have the right hangup cause, but it's just not
catching transfer_on_fail ...

<document type="freeswitch/xml">
  <section name="dialplan" description="Dial Plan for FreeSWITCH">
    <context name="default">
      <extension name="call to 12225551212">
        <condition field="destination_number" expression="12225551212">
          <action application="set" data="bypass_media=true"/>
          <action application="set" data="continue_on_fail=true"/>
          <action application="set" data="hangup_on_bridge=true"/>
      <action application="export" data="leg_progress_timeout=3"/>
          <action application="set" data="transfer_on_fail=PROGRESS_TIMEOUT
NETWORK_UNAVAIL xml error"/>
          <action application="bridge"
data="${sofia_contact(12225551212 at switch.local)"/>
    <context name="error">
      <extension name="NETWORK_UNAVAIL">
        <condition field="${originate_disposition}"
expression="PROGRESS_TIMEOUT" continue="false" break="on-true">
          <action application="bridge"
data="sofia/external/12345551212 at switch2.local"/>

Here's a small snippet of the logs when leg_progress_timeout expires ...

b54a79cd-85f1-4c15-929d-15b1654ff1de 2015-11-24 22:06:21.021538 [DEBUG]
switch_ivr_originate.c:3727 Originate Resulted in Error Cause: 607
b54a79cd-85f1-4c15-929d-15b1654ff1de 2015-11-24 22:06:21.021538 [INFO]
mod_dptools.c:3333 Originate Failed.  Cause: PROGRESS_TIMEOUT

Thanks ...
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