[SR-Users] Example kamailio.cfg t_check_trans()

[Daniel-Constantin Mierla]

Welcome - enhancements to the docs are always more than welcome!

Cheers,
Daniel

On 04/01/16 09:29, Phil Lavin wrote:
>
> Thanks, Daniel. I’ll update the docs to clarify this, if I get a moment.
>
>  
>
>  
>
> Cheers
>
>  
>
> Phil
>
>  
>
> *From:*sr-users [mailto:sr-users-bounces at lists.sip-router.org] *On
> Behalf Of *Daniel-Constantin Mierla
> *Sent:* 04 January 2016 08:06
> *To:* Kamailio (SER) - Users Mailing List <sr-users at lists.sip-router.org>
> *Subject:* Re: [SR-Users] Example kamailio.cfg t_check_trans()
>
>  
>
> Hello,
>
> On 31/12/15 12:39, Phil Lavin wrote:
>
>     Hi there,
>
>      
>
>     The example config that Kamailio ships with contains this block of
>     code in request_route:
>
>      
>
>     # handle retransmissions
>
>     if(t_precheck_trans()) {
>
>          t_check_trans();
>
>          exit;
>
>     }
>
>     t_check_trans();
>
>      
>
>     I am not fully understanding the requirement for either of the
>     t_check_trans() here. As far as I can see from the documentation,
>     t_check_trans() returns a boolean value and does not modify any
>     data internally.
>
>      
>
>     Can anyone help me find out what the relevance of the
>     t_check_trans() calls is?
>
>      
>
> t_check_trans() is used to detect retransmissions. If a retransmission
> is received, then the last reply (if any) needs to be sent back, then
> t_check_trans() does an 'exit' internally.
>
> Cheers,
> Daniel
>
> -- 
> Daniel-Constantin Mierla
> http://twitter.com/#!/miconda <http://twitter.com/#%21/miconda> - http://www.linkedin.com/in/miconda
> Book: SIP Routing With Kamailio - http://www.asipto.com
> http://miconda.eu

-- 
Daniel-Constantin Mierla
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
Book: SIP Routing With Kamailio - http://www.asipto.com
http://miconda.eu

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