[Freeswitch-users] failure_causes and DC code...

[Vladimir Getmanshchuk]

Brian,

I'm really appreciated for your suggestions, but I familiar with sip cause
mapping and this implementation in FS.

So issue was in hangup... (or on error channels, depends on point of view)

After I set failure_cause to any value (except one which includes 34) it
resets default pattern of failure causes (btw. where is it in the FS code?)
which include 34. So failure_cause not contain 34 and pass dialplan
executing after bridge to "error/normal_circuit_congestion".
After bridge executed, value of $last_bridge_hangup_cause is empty (btw.
Why? I guess it should be NORMAL_CIRCUIT_CONGESTION)
After was turn application called hangup which was executed with empty
argument value ($last_bridge_hangup_cause is empty).. So hangup returned
480 SIP with 16 Q850 (because it is default in case in case of cause is
empty)

So I've resolved issue with additional condition of
$last_bridge_hangup_cause variable.

I guess FS should set variable last_bridge_hangup_cause and other hangup
cause variables after execution of bridge to error channels like
"error/normal_circuit_congestion"...


On Thu, Nov 13, 2014 at 3:50 PM, Brian West <brian at freeswitch.org> wrote:

> Here is some data that may help you understand the cause code mappings in
> SIP:
>
> map QSIG cause codes to SIP from RFC4497 section 8.4.1
>
> see mod_sofia.c: hangup_cause_to_sip
>
> map sip responses to QSIG cause codes ala RFC4497 section 8.4.4
>
> see sofia_glue.c: sofia_glue_sip_cause_to_freeswitch
>
> You would also need to look at the logs, you've provided no context.
>
>
>
>
> On Thu, Nov 13, 2014 at 4:42 AM, Vladimir Getmanshchuk <vladget at gmail.com>
> wrote:
>
>> Looks like failure_causes do something wrong...
>>
>> dialplan:
>>
>> <context name="default">
>>
>>   <extension name="default">
>>
>>     <condition field="destination_number" expression="^\+?(.*)$">
>>
>>       <action application="set" data="failure_causes=17"/>
>>
>>        <action application="bridge"
>> data="error/normal_circuit_congestion"/>
>>
>>       <action application="hangup" data="${last_bridge_hangup_cause}"/>
>>
>>     </condition>
>>
>>   </extension>
>>
>> </context>
>>
>>
>> At sip:
>>
>> SIP/2.0 480 Temporarily Unavailable.
>>
>> Reason: Q.850;cause=16;text="NORMAL_CLEARING".
>>
>> Content-Length: 0.
>> with commented <!-- <action application="set" data="failure_causes=17"/>
>> -->
>>
>> at sip 503 with 34 as expected...
>>
>> --
>> Yours sincerely,
>> Vladimir Getmanshchuk
>>
>> _________________________________________________________________________
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>
>
>
> --
>
> *Brian West*
> brian at freeswitch.org
>
>
> *Twitter: @FreeSWITCH , @briankwest*
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>
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-- 
Yours sincerely,
Vladimir Getmanshchuk
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