[OpenSIPS-Users] uac_replace_from/to on a Branch Route

[Bogdan-Andrei Iancu]

Hi Antonio,

OpenSIPS allows you to do only one TO / FROM change per branch.

Changes you do in main Route are inherited by all future branches 
(including default branch 0).  Changes you do in branch route will 
affect only that branch

Antonio Anderson Souza wrote:
> Dear All,
>
> I'm getting the From/To header inconsistnet after a 
> uac_replace_from/to, I'm using uac_replace_from/to one time in the 
> main Route, and and another on a BranchRoute after got a failure in 
> the first branch.
=> you do 2 changes for the branch (global change and per-branch change)

>
> As i could understand in the UAC documentation it's not possible to 
> call the replace function more then once in a branch, but it's not may 
> case I'm creating a new branch on the failure route, and calling the 
> replace from the branch route, follow the script snippet bellow [1]:

use also branch route for changing the first branch. and only branch 
route (if you want to do changes per branch:

route {
    t_on_failure("1");
    t_on_branch("1");
    t_relay();
}

branch_route[1] {
   uac_replace_from("", "sip:$avp(s:from)@$fd");
   uac_replace_to("", "sip:$avp(s:to)@$td");
}

failure_route[1] {
  t_on_branch("1");
  if(!next_routing()) {
    t_reply("$err.rcode", "$err.rreason");
    exit;
  }
  t_relay();
}


Regards,
Bogdan
>
> The request generated for the second GW (Branch route) generates the 
> From/To header wrongly, the header becomes the first branch value 
> concatenated with the second branch value, see bellow:
>
> From: *sip:111133445566 at 192.168.191.105 
> <mailto:sip%3A111133445566 at 192.168.191.105>sip:221133445566 at 192.168.191.105 
> <mailto:sip%3A221133445566 at 192.168.191.105>*;tag=BSHdtMPF6bZNkSKa7YW3PsS1hWtAdLJC.
> To: *sip:110001888888 at 192.168.191.105 
> <mailto:sip%3A110001888888 at 192.168.191.105>**sip:220001888888 at 192.168.191.105 
> <mailto:sip%3A220001888888 at 192.168.191.105>*.
>
> The red values are the first branch values, and the blue values are 
> the second branch values.
>
> Does anybody has some idea to help me? Am I making something wrong?
>
> [1] -------------------------------------------------
> route{
>   ...
>   uac_replace_from("", "sip:$avp(s:from)@$fd");
>   uac_replace_to("", "sip:$avp(s:to)@$td");
>   ...
>
>   if (!t_relay()) {
>     sl_reply_error();
>   };
> }
>
>
> failure_route[1] {
>   t_on_branch("1");
>   if(!next_routing()) {
>     t_reply("$err.rcode", "$err.rreason");
>     exit;
>   }
>   append_branch();
>
>   if (!t_relay()) {
>     sl_reply_error();
>   };
> } 
>
> branch_route[1] {
>   ...
>   uac_replace_from("", "sip:$avp(s:from)@$fd");
>   uac_replace_to("", "sip:$avp(s:to)@$td");
>   ...
> }
>
> Best regards,
>
> Antonio Anderson Souza
> Voice Technology
> http://www.antonioams.com
> ------------------------------------------------------------------------
>
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>   


-- 
Bogdan-Andrei Iancu
www.voice-system.ro