[OpenSIPS-Users] B2B No TO TAG found

[Antonio Anderson Souza]

Anca,

Thank you very much for your support, I've made the changes in my script and
I got the refer scenarios working properly.

Regards,

Antonio Anderson Souza
Voice Technology
http://www.antonioams.com


On Wed, Apr 14, 2010 at 6:31 AM, Anca Vamanu <anca at opensips.org> wrote:

> Hi Antonio,
>
> You have to call b2b_init on the initial INVITE that creates the dialog.
> And the B2B server will know to correctly treat the REFER when it comes.
> That REFER message in fact will never go in the default route but in the
> route with the name defined in the module parameter "script_req_route"
> http://www.opensips.org/html/docs/modules/devel/b2b_entities.html#id227305
> .
>
> Regards,
>
> --
> Anca Vamanu
> www.voice-system.ro
>
>
>
>
>
> Antonio Anderson Souza wrote:
> > Hi,
> >
> > I'm creating a B2B scnarios to handle Refer request and execute the
> > transfer process, I'm using the Refer scenario [1] as reference, but
> > when the UAC sends the Refer to Opensips and the Script call the
> > scenario and the following error is printed in the Log:
> >
> > *Apr 13 14:10:18 localhost opensips[8924]:
> > ERROR:b2b_entities:b2b_tm_**cback: No TO TAG found *
> >
> > Follow bellow my b2b scenario [2], and the Cfg snippet [3].
> >
> > [1] - http://www.opensips.org/Resources/B2buaTutorial#toc15
> >
> > [2] - B2B Scenario:
> > <?xml version="1.0"?>
> > <scenario id="b2b-refer" name="Handle refer at server" param="0"
> > type="script">
> >   <init>
> >     <bridge>
> >       <server>
> >         <id>server1</id>
> >       </server>
> >       <client>
> >         <id>client1</id>
> >         <type>message</type>
> >         <destination>
> >           <value type="header">Refer-To</value>
> >         </destination>
> >       </client>
> >     </bridge>
> >   </init>
> >
> >   <rules>
> >      <request>
> >        <refer>
> >          <rule id="1">
> >            <action>
> >              <send_reply>
> >                <code>202</code>
> >                <reason>Accepted</reason>
> >              </send_reply>
> >              <end_dialog_leg/>
> >              <bridge>
> >                <client>
> >                  <peer/>
> >                </client>
> >                <client>
> >                  <id>client2</id>
> >                  <destination>
> >                    <value type="header">Refer-To</value>
> >                  </destination>
> >                </client>
> >              </bridge>
> >            </action>
> >          </rule>
> >        </refer>
> >     </request>
> >   </rules>
> > </scenario>
> >
> >
> >
> > [3] - Cfg snippet
> >
> >         if (has_totag()) {
> >                 # sequential request withing a dialog should
> >                 # take the path determined by record-routing
> >                 if (loose_route()) {
> >                         if (is_method("BYE")) {
> >
> >   setflag(1); # do accounting ...
> >                                 setflag(3); # ... even if the
> > transaction fails
> >                         } else if (is_method("INVITE")) {
> >                                 # even if in most of the cases is
> > useless, do RR for
> >                                 # re-INVITEs alos, as some buggy
> > clients do change route set
> >                                 # during the dialog.
> >                                 record_route();
> >                         } else if (is_method("REFER")) {
> >                                 xlog("L_ERR",
> >                                         "Refer received the b2b
> > scenario will be triggered [$fu/$tu/$ru/$ci]");
> >                                 # Start B2B Script to handle the
> > transference
> >                                 *b2b_init_request("b2b-refer");*
> >                                 xlog("L_ERR",
> >                                         "Refer processed by the b2b
> > scenario [$fu/$tu/$ru/$ci]");
> >                                 exit;
> >
> >
> > Does anybody have some idea to help me?
> >
> > Best regards,
> >
> > Antonio Anderson Souza
> > Voice Technology
> > http://www.antonioams.com
> > ------------------------------------------------------------------------
> >
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> >
>
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