[Freeswitch-users] unable to get transfer_on_fail to work

Brian West brian at freeswitch.org
Thu Nov 26 04:50:29 MSK 2015 

Transfer_on_fail doesn't work like your trying to use it!

On Wednesday, November 25, 2015, Gabriel Kuri <gkuri at ieee.org> wrote:

> I understand that I can have multiple bridge statements after my initial
> bridge, however this is specifically for detecting when a device fell off
> the network and the registration hasn't timed out. We want the behavior to
> be different than if the device was still on the network and it just rang
> for some time period and timed out and moved on to the next bridge
> statement, which is why I need transfer_on_fail.
>
> In regards to "hangup_on_bridge", I figured out later that it doesn't
> exist. I pulled that straight out of the documentation for
> transfer_on_fail, as with everything I was trying initially.
>
>      https://wiki.freeswitch.org/wiki/Variable_transfer_on_fail
>
>
> I think I figured out the problem, the condition for the transfer_on_fail
> wasn't being met with ${originate_disposition}, which is also straight out
> of the documentation for transfer_on_fail. It looks like the conditions get
> evaluated only at the beginning when the dialplan is called, not when that
> part of the dialplan gets hit? So at the time the dialplan is initially
> called, ${originate_disposition} isn't set and didn't match the Regex for
> it to pass the condition. I changed the condition to destination_number and
> it works now.
>
> The only part I couldn't get working is transferring to a different
> context within transfer_on_fail, for example:
>
>        <action application="set" data="transfer_on_fail=PROGRESS_TIMEOUT
> auto_cause xml error"/>
>
> If I put the PROGRESS_TIMEOUT extension within the "error" context, it
> doesn't work. Not sure what's going on there, but it's not a big deal. It
> works fine like this ...
>
> <document type="freeswitch/xml">
>   <section name="dialplan" description="Dial Plan for FreeSWITCH">
>     <context name="default">
>       <extension name="call to 12225551212">
>         <condition field="destination_number" expression="12225551212">
>           <action application="set" data="bypass_media=true"/>
>           <action application="set" data="continue_on_fail=true"/>
>           <action application="set" data="hangup_on_bridge=true"/>
>       <action application="export" data="leg_progress_timeout=3"/>
>           <action application="set"
> data="transfer_on_fail=PROGRESS_TIMEOUT auto_cause xml"/>
>           <action application="bridge"
> data="${sofia_contact(12225551212 at switch.local)"/>
>         </condition>
>       </extension>
>       <extension name="PROGRESS_TIMEOUT">
>         <condition field="destination_number" expression="12225551212"
> continue="false" break="on-true">
>           <action application="bridge" data="sofia/external/12345551212
> @switch2.local"/>
>         </condition>
>       </extension>
>     </context>
>   </section>
> </document>
>
>
>
>
> On Wed, Nov 25, 2015 at 3:07 PM, Brian West <brian at freeswitch.org
> <javascript:_e(%7B%7D,'cvml','brian at freeswitch.org');>> wrote:
>
>> And for those wondering:
>>
>> <extension name="call to 1234">
>>
>>   <condition field="destination_number" expression="^(1234)$">
>>
>>     <action application="set" data="orig_dest=$1"/>
>>
>>     <action application="set" data="bypass_media=true"/>
>>
>>     <action application="set" data="hangup_afer_bridge=true"/>
>>
>>     <action application="set" data=
>> "transfer_on_fail=PROGRESS_TIMEOUT,USER_BUSY,NORMAL_TEMPORARY_FAILURE"/>
>>
>>     <action application="bridge" data=
>> "{progress_timeout=2}sofia/external/sip:1234 at 192.168.1.123
>> <javascript:_e(%7B%7D,'cvml','sip:1234 at 192.168.1.123');>"/>
>>
>>   </condition>
>>
>> </extension>
>>
>>
>> <*extension* name="call to 1234">
>>
>>   <condition field="destination_number" expression="^PROGRESS_TIMEOUT$">
>>
>>     <action application="log" data="CRIT We can have progress timeouts?"
>> />
>>
>>   </condition>
>>
>> </extension>
>>
>>
>>
>> See XML on https://freeswitch.org/jira/browse/FS-3193
>>
>>
>> I fear this isn't documented correctly.
>>
>> On Wed, Nov 25, 2015 at 4:53 PM, Brian West <brian at freeswitch.org
>> <javascript:_e(%7B%7D,'cvml','brian at freeswitch.org');>> wrote:
>>
>>> There is no such thing as hangup_on_bridge, and if you wish to try a
>>> different gateway if the first one doesn't respond quick enough with
>>> progress do this:
>>>
>>> <extension name="call to 1234">
>>>
>>>   <condition field="destination_number" expression="^1234$">
>>>
>>>     <action application="set" data="bypass_media=true"/>
>>>
>>>     <action application="set" data="hangup_after_bridge=true"/>
>>>
>>>     <action application="bridge" data=
>>> "{progress_timeout=2}sofia/internal/sip:1234 at switch2-asdfa.com
>>> <javascript:_e(%7B%7D,'cvml','sip:1234 at switch2-asdfa.com');>"/>
>>>
>>>     <action application="bridge" data=
>>> "{progress_timeout=10}sofia/internal/sip:1234 at switch1-asdfa.com
>>> <javascript:_e(%7B%7D,'cvml','sip:1234 at switch1-asdfa.com');>"/>
>>>
>>>   </condition>
>>>
>>> </extension>
>>>
>>>
>>> There is no reason to do what you were doing in this case.
>>>
>>> On Wed, Nov 25, 2015 at 12:42 PM, Gabriel Kuri <gkuri at ieee.org
>>> <javascript:_e(%7B%7D,'cvml','gkuri at ieee.org');>> wrote:
>>>
>>>> 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)"/>
>>>>         </condition>
>>>>       </extension>
>>>>     </context>
>>>>     <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
>>>> @switch2.local"/>
>>>>         </condition>
>>>>       </extension>
>>>>     </context>
>>>>   </section>
>>>> </document>
>>>>
>>>> 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
>>>> [PROGRESS_TIMEOUT]
>>>> 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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>>>> consulting at freeswitch.org
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>>>> http://www.freeswitchsolutions.com
>>>>
>>>> Official FreeSWITCH Sites
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>>>>
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>>>>
>>>
>>>
>>>
>>> --
>>>
>>> *Brian West*
>>> brian at freeswitch.org
>>> <javascript:_e(%7B%7D,'cvml','brian at freeswitch.org');>
>>>
>>>
>>> *Twitter: @FreeSWITCH , @briankwest*
>>> http://www.freeswitchbook.com
>>> http://www.freeswitchcookbook.com
>>>
>>> Got Bugs? Report them here <https://freeswitch.org/jira>! | Reddit:
>>> /r/freeswitch <https://www.reddit.com/r/freeswitch>
>>>
>>> *T:*+19184209001 | *F:*+19184209002 | *M:*+1918424WEST (9378)
>>> *iNUM:*+883 5100 1420 9001 | *ISN:*410*543 | *Skype:*briankwest
>>>
>>
>>
>>
>> --
>>
>> *Brian West*
>> brian at freeswitch.org
>> <javascript:_e(%7B%7D,'cvml','brian at freeswitch.org');>
>>
>>
>> *Twitter: @FreeSWITCH , @briankwest*
>> http://www.freeswitchbook.com
>> http://www.freeswitchcookbook.com
>>
>> Got Bugs? Report them here <https://freeswitch.org/jira>! | Reddit:
>> /r/freeswitch <https://www.reddit.com/r/freeswitch>
>>
>> *T:*+19184209001 | *F:*+19184209002 | *M:*+1918424WEST (9378)
>> *iNUM:*+883 5100 1420 9001 | *ISN:*410*543 | *Skype:*briankwest
>>
>> _________________________________________________________________________
>> Professional FreeSWITCH Consulting Services:
>> consulting at freeswitch.org
>> <javascript:_e(%7B%7D,'cvml','consulting at freeswitch.org');>
>> http://www.freeswitchsolutions.com
>>
>> Official FreeSWITCH Sites
>> http://www.freeswitch.org
>> http://confluence.freeswitch.org
>> http://www.cluecon.com
>>
>> FreeSWITCH-users mailing list
>> FreeSWITCH-users at lists.freeswitch.org
>> <javascript:_e(%7B%7D,'cvml','FreeSWITCH-users at lists.freeswitch.org');>
>> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
>> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
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>>
>
>

-- 

*Brian West*
brian at freeswitch.org


*Twitter: @FreeSWITCH , @briankwest*
http://www.freeswitchbook.com
http://www.freeswitchcookbook.com

Got Bugs? Report them here <https://freeswitch.org/jira>! | Reddit:
/r/freeswitch <https://www.reddit.com/r/freeswitch>

*T:*+19184209001 | *F:*+19184209002 | *M:*+1918424WEST (9378)
*iNUM:*+883 5100 1420 9001 | *ISN:*410*543 | *Skype:*briankwest
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