[SR-Users] dialog expire, acc

[Kelvin Chua]

Hi Alex,

yes, locally generated BYEs
I was trying to avoid the unique constraint approach as it is not very
elegant.
I tried, AVPs, they are not accessible on the event_route[tm:local-request]

however, your idea on $dlg_vars was spot on, why didn't i think of that.
Thanks a bunch!

Kelvin Chua


On Fri, Mar 28, 2014 at 12:58 AM, Alex Balashov
<abalashov at evaristesys.com>wrote:

> Oh, you were talking about the BYEs that are internally generated by
> 'dialog'. In that case, ignore my advice; it's not applicable, because
> locally generated BYEs will not have the RR header and this won't work.
>
> In those situations, in my personal opinion, your best bet is to use a
> database-side UNIQUE constraint or trigger to ensure that only one BYE is
> logged for any given Call-ID. Otherwise, you're going to have to do some
> sort of internal statekeeping with 'htable' or what have you.
>
> You might be able to set $dlg_vars[1] indicating who is the callee and who
> is the caller, as well. However, I am not sure if you will have access to
> them inside the local event_route. That's a good question.
>
> [1] http://www.kamailio.org/wiki/cookbooks/4.1.x/
> pseudovariables#dlg_var_key
>
>
> On 03/28/2014 03:56 AM, Alex Balashov wrote:
>
>  On 03/28/2014 03:53 AM, Kelvin Chua wrote:
>>
>>  I have a situation here,
>>>
>>> when a dialog expires, it sends a BYE to both call legs and this does
>>> not generate an entry on acc table.
>>>
>>> however, when i use acc_db_request() on event_route[tm:local-request], i
>>> get 2 entries on acc, 1 for the downstream, and 1 for the upstream.
>>>
>>> is there a way of handling this so i can only get 1 BYE on acc?
>>>
>>
>> You could take advantage of the rr module's is_direction() function:
>>
>>     http://kamailio.org/docs/modules/4.1.x/modules/rr.html#idp1797400
>>
>> You will need to set the append_fromtag modparam to make it work:
>>
>>
>> http://kamailio.org/docs/modules/4.1.x/modules/rr.html#append-fromtag-id
>>
>> -- Alex
>>
>>
>
> --
> Alex Balashov - Principal
> Evariste Systems LLC
> 235 E Ponce de Leon Ave
> Suite 106
> Decatur, GA 30030
> United States
> Tel: +1-678-954-0670
> Web: http://www.evaristesys.com/, http://www.alexbalashov.com/
>
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