[OpenSIPS-Users] Changing FROM header several times

[Bogdan-Andrei Iancu]

Hi Magnus,

actually you want to change the FROM hdr once per each branch - so use 
the branch route for applying the per-branch changes (call 
uac_replace_from from branch_route).

Regards,
Bogdan

Magnus Burman wrote:
> To get outgoing caller id to work I have to change my FROM header to a 
> trunk-specific format. While this is ugly, it works, unless I try to 
> do it more then once. Using gateway lists in drouting this scenario 
> can happen as the routing script is run for each gateway on failure.
>
> Is there another way for me to do this? Either by only using 
> uac_replace_from once, or by alternating the FROM header in another way?
>
> With the below script I end up with duplicates:
> From: "123456789""34123456789" 
> <sip:123456789 at 4.4.4.4sip:34123456789 at 4.4.4.4 
> <mailto:34123456789 at 4.4.4.4>>;tag=as0ab5e31d.
>
> if(do_routing()) {
>     route(111);
>     exit;
> }
>
> #...
>
> route[111] {
>     # Do gateway-specific processing
>     switch($rd) {
>         case "1.1.1.1":
>             route(callid1);
>             break;
>         case "2.2.2.2":
>             route(callid2);
>             break;
>         case "3.3.3.3":
>             route(callid3);
>             break;
>         default:
>             route(callid1);
>     }
>     t_on_failure("1");
>     if (!t_relay()) {
>         sl_reply_error();
>     };
>     exit;
> }
>
> route[callid1] {
>     if(avp_db_query("select call_id from subscriber_extras where 
> username = '$fU'", "$avp(s:cid)")) {
>         uac_replace_from("34$avp(s:cid)", "sip:34$avp(s:cid)@$td");
>     }
> }
>
> route[callid2] {
>     if(avp_db_query("select call_id from subscriber_extras where 
> username = '$fU'", "$avp(s:cid)")) {
>         uac_replace_from("+34$avp(s:cid)", "sip:+34$avp(s:cid)@$td");
>     }
> }
>
> route[callid3] {
>     if(avp_db_query("select call_id from subscriber_extras where 
> username = '$fU'", "$avp(s:cid)")) {
>         uac_replace_from("$avp(s:cid)", "sip:$avp(s:cid)@$td");
>     }
> }
>
> failure_route[1] {
>     if(use_next_gw()) {
>         t_on_failure("1");
>         route(111);
>         exit;
>     }
> }
> ------------------------------------------------------------------------
>
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-- 
Bogdan-Andrei Iancu
OpenSIPS Bootcamp
20 - 24 September 2010, Frankfurt, Germany
www.voice-system.ro