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    <tt>Dragomir,<br>
      <br>
      The Call Center module handles the agents as simple SIP URIs. if
      in your case the agents are actually registering devices, this is
      a different matter. What I suggest, for simplicity reasons is to
      use 2 opensips instances. <br>
      <br>
      The first to be a dedicated call center seeing the agents as AoRs
      (<a class="moz-txt-link-freetext" href="sip:user@domain">sip:user@domain</a>) where the domain points to the IP of the second
      server<br>
      <br>
      The second instance to be simple registrar server for the "domain"
      where the agents are registering their devices.<br>
      <br>
      In terms of call you will have:<br>
      <br>
      ---(call to queue)----> OPENSIPS1 -----(call to agent
      user@domain)----> OPENSIPS2 -----(call to registered
      device)-----> AGENT DEVICE<br>
      <br>
      <br>
      Regards,<br>
    </tt>
    <pre class="moz-signature" cols="72">Bogdan-Andrei Iancu
  OpenSIPS Founder and Developer
  <a class="moz-txt-link-freetext" href="http://www.opensips-solutions.com">http://www.opensips-solutions.com</a>
</pre>
    <div class="moz-cite-prefix">On 11/10/2017 04:21 PM, Dragomir
      Haralambiev wrote:<br>
    </div>
    <blockquote type="cite"
cite="mid:CADzurOLtNv=OAA2sbEyXsdNacFgQ3ut8-nNBNEdzYwwsq3wXrg@mail.gmail.com">
      <div dir="ltr">
        <div>Hi,</div>
        <div><br>
        </div>
        <div>I try your idea to loop the INVITE back to Opensips and do
          a lookup(). I pit into "location" field from cc_agents table
          this one <a class="moz-txt-link-rfc2396E" href="sip:localnumber@Opensips_IP:Opensips_port">"sip:localnumber@Opensips_IP:Opensips_port"</a>.</div>
        <div><br>
        </div>
        <div>Call is connected but I receive follow log message:</div>
        <div><br>
        </div>
        <div>  ERROR:b2b_entities:b2b_prescript_f: No dialog found,
          callid= [B2B.337.5360955.1510320840], method=OPTIONS</div>
        <div><br>
        </div>
        <div>When call is finished record from dialog tables is not
          deleted. <br>
          <br>
          Where is problem?</div>
        <div><br>
        </div>
        <div>Regards,</div>
        <div>Dragomir</div>
      </div>
      <div class="gmail_extra"><br>
        <div class="gmail_quote">2017-11-06 11:37 GMT+02:00 Răzvan
          Crainea <span dir="ltr"><<a
              href="mailto:razvan@opensips.org" target="_blank"
              moz-do-not-send="true">razvan@opensips.org</a>></span>:<br>
          <blockquote class="gmail_quote" style="margin:0 0 0
            .8ex;border-left:1px #ccc solid;padding-left:1ex">
            <div text="#000000" bgcolor="#FFFFFF"> <tt>Hi, Hristo!<br>
                <br>
                1. You are right, b2b_entities should be loaded as a
                dependency for b2b_logic. You may argue that it should
                also be listed as a dependency to call_center as well,
                but indirectly.<br>
                <br>
                2. Yes, you should populate the tables with the flows
                you want to support and the agents that are going to use
                the call center.<br>
                <br>
                3. There is currently no way to directly set the
                location of the agent dynamically. However, we can do
                some work-arounds, for example always advertise yourself
                as the location of the user, and for each call you can
                loop the INVITE back to you and do a lookup(). Or simply
                use an external registrar service.<br>
                <br>
                Best regards,<br>
              </tt>
              <pre class="m_8082184747567676002moz-signature" cols="72">Răzvan Crainea
OpenSIPS Developer
<a class="m_8082184747567676002moz-txt-link-abbreviated" href="http://www.opensips-solutions.com" target="_blank" moz-do-not-send="true">www.opensips-solutions.com</a></pre>
              <div>
                <div class="h5">
                  <div class="m_8082184747567676002moz-cite-prefix">On
                    11/05/2017 11:06 PM, Hristo Donev wrote:<br>
                  </div>
                </div>
              </div>
              <blockquote type="cite">
                <div>
                  <div class="h5">
                    <div dir="ltr">
                      <div>Hello All,</div>
                      <div><br>
                      </div>
                      <div>I try to implement call_center module in
                        Opensips 2.3.</div>
                      <div>Here are my questions?</div>
                      <div><br>
                      </div>
                      <div>1. From the documentation 1.3.1:</div>
                      <div>"b2b_logic" and "database" must be loaded
                        before callcenter module.</div>
                      <div><br>
                      </div>
                      <div>I found out that "b2b_entities" should be
                        loaded as well, otherwise the opensips does not
                        start.</div>
                      <div><br>
                      </div>
                      <div>Is this my mistake or a documentation error?</div>
                      <div><br>
                      </div>
                      <div>2. Opensips can not start if the tables 
                        "cc_agents" and "cc_flow" are empty.</div>
                      <div>Why it cannot start? Should they be populated
                        with some data?</div>
                      <div><br>
                      </div>
                      <div>3. Table "cc_agents", field "location" should
                        point to the SIP agent location.</div>
                      <div>If the agent's IP and port are changed
                        dynamically -</div>
                      <div>how to copy automatically "contact" field
                        from "location" table to "cc_agents" field
                        "location"? </div>
                      <div><br>
                      </div>
                      <div>I would be grateful to receive a response for
                        my questions.</div>
                      <div><br>
                      </div>
                      <div>Thanks in advance,</div>
                      <div>Hristo Donev</div>
                    </div>
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