Re: [SR-Users] Example kamailio.cfg t_check_trans()
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-boun...@lists.sip-router.org] *On
> Behalf Of *Daniel-Constantin Mierla
> *Sent:* 04 January 2016 08:06
> *To:* Kamailio (SER) - Users Mailing List <sr-users@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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Re: [SR-Users] Example kamailio.cfg t_check_trans()
Thanks, Daniel. I'll update the docs to clarify this, if I get a moment.
Cheers
Phil
From: sr-users [mailto:sr-users-boun...@lists.sip-router.org] On Behalf Of
Daniel-Constantin Mierla
Sent: 04 January 2016 08:06
To: Kamailio (SER) - Users Mailing List <sr-users@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://www.linkedin.com/in/miconda
Book: SIP Routing With Kamailio - http://www.asipto.com
http://miconda.eu
___
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http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
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://www.linkedin.com/in/miconda
Book: SIP Routing With Kamailio - http://www.asipto.com
http://miconda.eu
___
SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
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http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
[SR-Users] Example kamailio.cfg t_check_trans()
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?
Thanks
Phil Lavin
Systems Engineer
CloudCall by SYNETY
www.cloudcall.com
T: +44 (0) 330 335 / +1 617 982 1600
D: +44 (0) 116 424 4790 / +1 617 982 4790
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