[OpenSIPS-Users] B2BUA "From" Header & Caller-ID Question

[Anca Vamanu]

Hi Brett,

I think using script variables should work - 
http://www.opensips.org/Resources/DocsCoreVar#varscript.

Regards,
Anca

On 10/13/2010 01:31 AM, Brett Woollum wrote:
> Hi Anca,
>
> I figured out the solution that you were referring to. I added the 
> local_route section and changed the header in there, and it works.
>
> The only problem now is that the AVP variable I set in route doesn't 
> seem to be persistent into the new request inside local_route. This is 
> a problem because I need some way to send the variables to local_route 
> so that I can put them into the new request. Is there a way to make an 
> AVP variable persistent into the local_route as well? Or maybe there 
> is a better way to make these variables accessible from inside 
> local_route?
>
> Here is my working code (with statically set caller id. I need to make 
> this dynamic):
> local_route {
>     if (is_method("INVITE")) {
>         remove_hf("From");
>         append_hf("From: \"TEST3\" <sip:12345 at 1.2.3.4>;tag=$ft\r\n");
>         #exit;
>     }
>     if (is_method("BYE") ) {
>         acc_log_request("internally generated BYE");
>     }
> }
>
> Brett Woollum
> Brett at Woollum.com
>
>
> ----- Original Message -----
> From: "Anca Vamanu" <anca at opensips.org>
> To: users at lists.opensips.org
> Sent: Tuesday, October 12, 2010 2:37:55 AM GMT -08:00 US/Canada Pacific
> Subject: Re: [OpenSIPS-Users] B2BUA "From" Header & Caller-ID Question
>
> Hi Brett,
>
> The b2bua generates a new request with the info from the received one. 
> The problem is with the changes upon a request not being visible to 
> the following functions called from the script.
> So you have to change the header on the generated one, in local route.
>
> Regards,
> Anca
>
>
> On 10/12/2010 10:24 AM, Brett Woollum wrote:
>
>     In addition, the uac_replace_from(display,uri); function does not
>     seem to work either. I tested this function by putting:
>
>     uac_replace_from("TEST", "sip:12345 at 1.2.3.4");
>
>     immediately above the call to B2B_INIT_REQUEST and the outbound
>     "From:" header remains unchanged (incorrect).
>
>     Brett Woollum
>     Brett at Woollum.com
>
>
>     ----- Original Message -----
>     From: "Brett Woollum" <brett at woollum.com>
>     To: "users-request" <users at lists.opensips.org>
>     Sent: Monday, October 11, 2010 11:53:39 PM GMT -08:00 US/Canada
>     Pacific
>     Subject: [OpenSIPS-Users] B2BUA "From" Header & Caller-ID Question
>
>     Hello,
>
>     I have a working implementation of the B2BUA modules for OpenSIPS.
>     One problem I am having is that the B2BUA module doesn't seem to
>     respect the "From:" header that I updated before B2B_INIT was
>     called (at the end of the script). Before I call B2B_INIT, my
>     script looks up the correct caller-id from a database and replaces
>     the "From:" header with the new information. Here is that code:
>
>     xlog("This is an external call...");
>     avp_db_query("select id from subscriber where username=\"$fU\" AND
>     domain=\"1.2.3.4\"", "$avp(s:subscriber_id)");
>     if(is_avp_set("$avp(s:subscriber_id)")){
>                                 avp_db_query("select
>     external_cid_name,external_cid_uri,external_cid_uri_domain from
>     cid where subscriber_id=\"$avp(s:subscriber_id)\"",
>     "$avp(s:external_cid_name);$avp(s:external_cid_uri);$avp(s:external_cid_uri_domain)");
>                                 remove_hf("From");
>                                 append_hf("From:
>     \"$avp(s:external_cid_name)\"
>     <sip:$avp(s:external_cid_uri)@$avp(s:external_cid_uri_domain)>;tag=$ft\r\n");
>     }
>
>     The resulting "From": header is perfect (it includes the new
>     caller-id information) and works without problems when I don't use
>     the B2BUA module. It seems as though the B2BUA module (which is
>     called last in the script) does not respect the new header, and
>     instead processes the call using whatever was in $fu when the
>     script started. Unfortunately $fu is not writable, so I can't
>     directly change it.
>
>     What are some possible work-arounds to get the B2BUA module to
>     create the new call but include the "From:" header that I've
>     updated earlier in the script?
>
>     Any ideas are greatly appreciated!
>
>     Brett Woollum
>     Brett at Woollum.com
>
>
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>
>
>
> -- 
> Anca Vamanu
> www.voice-system.ro
>    
>
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-- 
Anca Vamanu
www.voice-system.ro

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