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