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    <tt>Hello,<br>
      <br>
      What you can do is to remove the authentication part from your
      script and make again the test, to see if indeed the limitation
      comes from auth itself.<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>
    <br>
    On 11/01/2013 01:08 PM, Erwan Desvergnes wrote:
    <blockquote
cite="mid:CACR+rytnt5wyuzC1Tm6MSKczxX7Pdc5Pb6KP-SgmxSOfxTR93Q@mail.gmail.com"
      type="cite">Yes
      <div>What dis you recommend ?<span></span><br>
        <br>
        Le vendredi 1 novembre 2013, Bogdan-Andrei Iancu a &eacute;crit&nbsp;:<br>
        <blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt
          0.8ex; border-left: 1px solid rgb(204, 204, 204);
          padding-left: 1ex;">
          <div text="#000000" bgcolor="#ffffff"> <tt>Hello Erwan,<br>
              <br>
              Does OpenSIPS perform authentication for the received
              calls ? Maybe the limitation comes from the DB throughput.<br>
              <br>
              Best regards,<br>
            </tt>
            <pre cols="72">Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
<a moz-do-not-send="true" href="http://www.opensips-solutions.com" target="_blank">http://www.opensips-solutions.com</a></pre>
            <br>
            On 10/31/2013 12:59 PM, Erwan Desvergnes wrote:
            <blockquote type="cite">
              <div dir="ltr">
                <div>Here is my configuration:&nbsp;</div>
                <div><br>
                </div>
                <div>1 Opensips Server in front</div>
                <div>and 3 asterisk server connected to pstn and users
                  are created using A2billing</div>
                <div><br>
                </div>
                <div>Users register on Opensips and send call</div>
                <div><br>
                </div>
                <div>
                  <div>All users a created using A2Billing</div>
                  <div>Then calls on opensips never gone more than 400</div>
                  <div>and on client i've got message authrejected</div>
                  <div>when i take look a sip trace, on client using
                    tcpdump i saw than auth is well send but no reply
                    from opensips</div>
                  <div>Our customer are call center with heavy CPS</div>
                  <div>and predictive dialling</div>
                  <div>on manual call no prob for auth but more cps is
                    important more auth problem we got</div>
                  <div>here is my configuration</div>
                  <div> <br>
                  </div>
                  <div><br>
                  </div>
                  <div>listen=udp:a.d.d.ip:5060 # CUSTOMIZE ME</div>
                  <div>debug=1</div>
                  <div>log_stderror=no</div>
                  <div>log_facility=LOG_LOCAL6</div>
                  <div>fork=yes</div>
                  <div>children=32</div>
                  <div>dns_try_ipv6=no</div>
                  <div> auto_aliases=no</div>
                  <div>disable_tcp=yes</div>
                  <div>server_signature=no</div>
                  <div>####### Modules Section ########</div>
                  <div>#set module path</div>
                  <div>mpath="/lib64/opensips/modules/"</div>
                  <div>#### SIGNALING module</div>
                  <div>loadmodule "signaling.so"</div>
                  <div>#### StateLess module</div>
                  <div>loadmodule "sl.so"</div>
                  <div>#### Transaction Module</div>
                  <div>loadmodule "tm.so"</div>
                  <div>modparam("tm", "fr_timer", 5)</div>
                  <div>modparam("tm", "fr_inv_timer", 30)</div>
                  <div>modparam("tm", "restart_fr_on_each_reply", 0)</div>
                  <div>modparam("tm", "wt_timer", 10)</div>
                  <div>modparam("tm", "onreply_avp_mode", 1)</div>
                  <div>#### Record Route Module</div>
                  <div>loadmodule "rr.so"</div>
                  <div>modparam("rr", "append_fromtag", 1)</div>
                  <div>#### MAX ForWarD module</div>
                  <div>loadmodule "maxfwd.so"</div>
                  <div> #### SIP MSG OPerationS module</div>
                  <div>loadmodule "sipmsgops.so"</div>
                  <div>#### FIFO Management Interface</div>
                  <div>loadmodule "mi_fifo.so"</div>
                  <div>modparam("mi_fifo", "fifo_name",
                    "/tmp/opensips_fifo")</div>
                  <div>modparam("mi_fifo", "fifo_mode", 0666)</div>
                  <div>#### URI module</div>
                  <div>loadmodule "uri.so"</div>
                  <div>modparam("uri", "use_uri_table", 0)</div>
                  <div>#### USeR LOCation module</div>
                  <div>loadmodule "usrloc.so"</div>
                  <div>modparam("usrloc", "nat_bflag", 10)</div>
                  <div>modparam("usrloc", "db_mode", &nbsp; 0)</div>
                  <div>#### REGISTRAR module</div>
                  <div>loadmodule "registrar.so"</div>
                  <div>modparam("registrar", "tcp_persistent_flag", 7)</div>
                  <div>#### ACCounting module</div>
                  <div>#loadmodule "acc.so"</div>
                  <div>#modparam("acc", "early_media", 0)</div>
                  <div> #modparam("acc", "report_cancels", 1)</div>
                  <div>#modparam("acc", "detect_direction", 1)</div>
                  <div>#modparam("acc", "db_flag", 1)</div>
                  <div>#modparam("acc", "log_level", 5)</div>
                  <div>#modparam("acc", "log_flag", 1)</div>
                  <div>#modparam("acc", "db_missed_flag", 2)</div>
                  <div>#modparam("acc", "failed_transaction_flag", 3)</div>
                  <div>#modparam("acc", "db_extra", "from_uri=$fu;
                    to_uri=$tu") #Extra data</div>
                  <div># ----- sip_trace ------</div>
                  <div>#loadmodule "siptrace.so"</div>
                  <div>#modparam("siptrace", "trace_on", 1)</div>
                  <div>#modparam("siptrace", "enable_ack_trace", 1)</div>
                  <div>#modparam("siptrace", "table", "sip_trace")</div>
                  <div>#modparam("siptrace", "trace_flag", 22)</div>
                  <div>#### CACHEDB_REDIS module</div>
                  <div>loadmodule "cachedb_redis.so"</div>
                  <div>modparam("cachedb_redis","cachedb_url","</div>
                </div>
              </div>
              <pre><fieldset></fieldset>
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      <br>
      <br>
      -- <br>
      <font color="#333333"><b>Erwan Desvergnes</b></font>
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