[OpenSIPS-Users] B2B No TO TAG found

[Antonio Anderson Souza]

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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