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    Hi,<br>
    <br>
    I guess you are fighting against a NAT problem (the 2098 device
    being behind a NAT) - to see how to properly activate NAT traversal
    for the your OpenSIPS server, take a look at the auto-generated cfg
    file (use make menuconfig), the residential script, with NAT
    traversal support.<br>
    <br>
    Best regards,<br>
    <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 08.09.2015 04:09, chiu ching cheng
      wrote:<br>
    </div>
    <blockquote
cite="mid:CA+Ew+Jxtk9jB2tM1ne61kTxmEMEaLh3aEJcD3kwamEKHURhbkg@mail.gmail.com"
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                        <div dir="ltr">Dear man :
                          <div><br>
                          </div>
                          <div>I am a new user for opensips , and my
                            staff installed one opensips server for
                            company service .</div>
                          <div><br>
                          </div>
                          <div>I something suffer us recently . One user
                            can't call another user sometime  , it show
                            " time out ".</div>
                          <div><br>
                          </div>
                          <div>so I create two account for test u2099
                            &amp; u2098 .</div>
                          <div><br>
                          </div>
                          <div>one day I find the situation . I have two
                            wifi AP , one ip 218.211.224.81 , the other
                            is 218.211.224.83</div>
                          <div><br>
                          </div>
                          <div>I find I can't call u2098 from u2099 , I
                            find two register record in opensips console
                            as follow:</div>
                          <div><br>
                          </div>
                          <div>
                            <div>OpenSIPS$:online</div>
                            <div>Domain:: location table=512 records=6</div>
                            <div> <span style="white-space:pre-wrap"> </span></div>
                            <div> <span style="white-space:pre-wrap"> </span>AOR::
                              u2099</div>
                            <div> <span style="white-space:pre-wrap"> </span>Contact:: <a
                                moz-do-not-send="true"
                                href="http://sip:u2099@118.163.76.241:58623/"
                                target="_blank">sip:u2099@118.163.76.241:58623</a> Q=</div>
                            <div> <span style="white-space:pre-wrap"> </span>Expires::
                              1645</div>
                            <div> <span style="white-space:pre-wrap"> </span>Callid::
                              CQUZde-qZ~</div>
                            <div> <span style="white-space:pre-wrap"> </span>Cseq::
                              23</div>
                            <div> <span style="white-space:pre-wrap"> </span>User-agent::
                              LinphoneAndroid/2.5.0 (belle-sip/1.4.1)</div>
                            <div> <span style="white-space:pre-wrap"> </span>State::
                              CS_SYNC</div>
                            <div> <span style="white-space:pre-wrap"> </span>Flags::
                              0</div>
                            <div> <span style="white-space:pre-wrap"> </span>Cflags::
                              NAT</div>
                            <div> <span style="white-space:pre-wrap"> </span>Socket::
                              udp:<a moz-do-not-send="true"
                                href="http://172.31.20.192:5060/"
                                target="_blank">172.31.20.192:5060</a></div>
                            <div> <span style="white-space:pre-wrap"> </span>Methods::
                              4294967295</div>
                            <div> <span style="white-space:pre-wrap"> </span>SIP_instance::
&lt;urn:uuid:6d257aac-06d8-4938-8078-23065ae6bdb3&gt;</div>
                            <div> <span style="white-space:pre-wrap"> </span>AOR::
                              u2098</div>
                            <div> <span style="white-space:pre-wrap"> </span>Contact:: <a
                                moz-do-not-send="true"
                                href="http://sip:u2098@218.211.224.81:5060/"
                                target="_blank">sip:u2098@218.211.224.81:5060</a> Q=</div>
                            <div> <span style="white-space:pre-wrap"> </span>Expires::
                              43</div>
                            <div> <span style="white-space:pre-wrap"> </span>Callid::
                              4Cb~7N3o41</div>
                            <div> <span style="white-space:pre-wrap"> </span>Cseq::
                              25</div>
                            <div> <span style="white-space:pre-wrap"> </span>User-agent::
                              LinphoneAndroid/2.4.1 (belle-sip/1.4.1)</div>
                            <div> <span style="white-space:pre-wrap"> </span>State::
                              CS_SYNC</div>
                            <div> <span style="white-space:pre-wrap"> </span>Flags::
                              0</div>
                            <div> <span style="white-space:pre-wrap"> </span>Cflags::
                              NAT</div>
                            <div> <span style="white-space:pre-wrap"> </span>Socket::
                              udp:<a moz-do-not-send="true"
                                href="http://172.31.20.192:5060/"
                                target="_blank">172.31.20.192:5060</a></div>
                            <div> <span style="white-space:pre-wrap"> </span>Methods::
                              4294967295</div>
                            <div> <span style="white-space:pre-wrap"> </span>SIP_instance::
&lt;urn:uuid:5177d940-b2f5-459d-bb01-da5e43b7599b&gt;</div>
                            <div> <span style="white-space:pre-wrap"> </span>Contact:: <a
                                moz-do-not-send="true"
                                href="mailto:sip%3Au2098@218.211.224.81"
                                target="_blank">sip:u2098@218.211.224.81</a> Q=</div>
                            <div> <span style="white-space:pre-wrap"> </span>Expires::
                              910</div>
                            <div> <span style="white-space:pre-wrap"> </span>Callid::
                              4Cb~7N3o41</div>
                            <div> <span style="white-space:pre-wrap"> </span>Cseq::
                              28</div>
                            <div> <span style="white-space:pre-wrap"> </span>User-agent::
                              LinphoneAndroid/2.4.1 (belle-sip/1.4.1)</div>
                            <div> <span style="white-space:pre-wrap"> </span>State::
                              CS_SYNC</div>
                            <div> <span style="white-space:pre-wrap"> </span>Flags::
                              0</div>
                            <div> <span style="white-space:pre-wrap"> </span>Cflags:: </div>
                            <div> <span style="white-space:pre-wrap"> </span>Socket::
                              udp:<a moz-do-not-send="true"
                                href="http://172.31.20.192:5060/"
                                target="_blank">172.31.20.192:5060</a></div>
                            <div> <span style="white-space:pre-wrap"> </span>Methods::
                              4294967295</div>
                            <div> <span style="white-space:pre-wrap"> </span>SIP_instance::
&lt;urn:uuid:5177d940-b2f5-459d-bb01-da5e43b7599b&gt;</div>
                          </div>
                          <div><br>
                          </div>
                          <div><br>
                          </div>
                          <div>But it's wrong for u2098 ,because I
                            transfer wifi to ip 218.211.224.83 AP .</div>
                          <div><br>
                          </div>
                          <div>Then I call from u2098 to u2099 , the I
                            find the register information from console .</div>
                          <div>
                            <div>OpenSIPS$:online</div>
                            <div><br>
                            </div>
                            <div><span style="white-space:pre-wrap"> </span></div>
                            <div> <span style="white-space:pre-wrap"> </span>AOR::
                              u2099</div>
                            <div> <span style="white-space:pre-wrap"> </span>Contact:: <a
                                moz-do-not-send="true"
                                href="http://sip:u2099@118.163.76.241:58623/"
                                target="_blank">sip:u2099@118.163.76.241:58623</a> Q=</div>
                            <div> <span style="white-space:pre-wrap"> </span>Expires::
                              913</div>
                            <div> <span style="white-space:pre-wrap"> </span>Callid::
                              CQUZde-qZ~</div>
                            <div> <span style="white-space:pre-wrap"> </span>Cseq::
                              23</div>
                            <div> <span style="white-space:pre-wrap"> </span>User-agent::
                              LinphoneAndroid/2.5.0 (belle-sip/1.4.1)</div>
                            <div> <span style="white-space:pre-wrap"> </span>State::
                              CS_SYNC</div>
                            <div> <span style="white-space:pre-wrap"> </span>Flags::
                              0</div>
                            <div> <span style="white-space:pre-wrap"> </span>Cflags::
                              NAT</div>
                            <div> <span style="white-space:pre-wrap"> </span>Socket::
                              udp:<a moz-do-not-send="true"
                                href="http://172.31.20.192:5060/"
                                target="_blank">172.31.20.192:5060</a></div>
                            <div> <span style="white-space:pre-wrap"> </span>Methods::
                              4294967295</div>
                            <div> <span style="white-space:pre-wrap"> </span>SIP_instance::
&lt;urn:uuid:6d257aac-06d8-4938-8078-23065ae6bdb3&gt;</div>
                            <div> <span style="white-space:pre-wrap"> </span>AOR::
                              u2098</div>
                            <div> <span style="white-space:pre-wrap"> </span>Contact:: <a
                                moz-do-not-send="true"
                                href="mailto:sip%3Au2098@218.211.224.81"
                                target="_blank">sip:u2098@218.211.224.81</a> Q=</div>
                            <div> <span style="white-space:pre-wrap"> </span>Expires::
                              178</div>
                            <div> <span style="white-space:pre-wrap"> </span>Callid::
                              4Cb~7N3o41</div>
                            <div> <span style="white-space:pre-wrap"> </span>Cseq::
                              28</div>
                            <div> <span style="white-space:pre-wrap"> </span>User-agent::
                              LinphoneAndroid/2.4.1 (belle-sip/1.4.1)</div>
                            <div> <span style="white-space:pre-wrap"> </span>State::
                              CS_SYNC</div>
                            <div> <span style="white-space:pre-wrap"> </span>Flags::
                              0</div>
                            <div> <span style="white-space:pre-wrap"> </span>Cflags:: </div>
                            <div> <span style="white-space:pre-wrap"> </span>Socket::
                              udp:<a moz-do-not-send="true"
                                href="http://172.31.20.192:5060/"
                                target="_blank">172.31.20.192:5060</a></div>
                            <div> <span style="white-space:pre-wrap"> </span>Methods::
                              4294967295</div>
                            <div> <span style="white-space:pre-wrap"> </span>SIP_instance::
&lt;urn:uuid:5177d940-b2f5-459d-bb01-da5e43b7599b&gt;</div>
                            <div> <span style="white-space:pre-wrap"> </span>Contact:: <a
                                moz-do-not-send="true"
                                href="mailto:sip%3Au2098@218.211.224.83"
                                target="_blank">sip:u2098@218.211.224.83</a> Q=</div>
                            <div> <span style="white-space:pre-wrap"> </span>Expires::
                              3419</div>
                            <div> <span style="white-space:pre-wrap"> </span>Callid::
                              4Cb~7N3o41</div>
                            <div> <span style="white-space:pre-wrap"> </span>Cseq::
                              30</div>
                            <div> <span style="white-space:pre-wrap"> </span>User-agent::
                              LinphoneAndroid/2.4.1 (belle-sip/1.4.1)</div>
                            <div> <span style="white-space:pre-wrap"> </span>State::
                              CS_SYNC</div>
                            <div> <span style="white-space:pre-wrap"> </span>Flags::
                              0</div>
                            <div> <span style="white-space:pre-wrap"> </span>Cflags:: </div>
                            <div> <span style="white-space:pre-wrap"> </span>Socket::
                              udp:<a moz-do-not-send="true"
                                href="http://172.31.20.192:5060/"
                                target="_blank">172.31.20.192:5060</a></div>
                            <div> <span style="white-space:pre-wrap"> </span>Methods::
                              4294967295</div>
                            <div> <span style="white-space:pre-wrap"> </span>SIP_instance::
&lt;urn:uuid:5177d940-b2f5-459d-bb01-da5e43b7599b&gt;</div>
                          </div>
                          <div><br>
                          </div>
                          <div>Then one record for u2098 changed . and
                            u2098 can be called.</div>
                          <div><br>
                          </div>
                          <div>I change nathelper module parameter in
                            opensips.cfg</div>
                          <div><br>
                          </div>
                          <div>original :</div>
                          <div> modparam("nathelper", "ping_nated_only",
                            1)</div>
                          <div>modparam("nathelper", "received_avp",
                            "$avp(received_nh)")</div>
                          <div><br>
                          </div>
                          <div>modparam("usrloc", "nat_bflag", "NAT")</div>
                          <div>modparam("nathelper", "natping_socket", "<a
                              moz-do-not-send="true"
                              href="http://54.169.33.191:5060/"
                              target="_blank">54.169.33.191:5060</a>")</div>
                          <div>modparam("nathelper", "nortpproxy_str",
                            "")</div>
                          <div>modparam("nathelper", "sipping_bflag", 8)</div>
                          <div><br>
                          </div>
                          <div>changed:</div>
                          <div>
                            <div>modparam("nathelper",
                              "natping_interval", 10)</div>
                            <div>modparam("nathelper",
                              "ping_nated_only", 1)</div>
                            <div>modparam("nathelper",
                              "natping_processes", 1)</div>
                            <div>modparam("nathelper", "received_avp",
                              "$avp(received_nh)")</div>
                            <div>modparam("nathelper", "natping_socket",
                              "<a moz-do-not-send="true"
                                href="http://54.169.33.191:5060/"
                                target="_blank">54.169.33.191:5060</a>")</div>
                            <div>modparam("nathelper", "sipping_from", "<a
                                moz-do-not-send="true"
                                href="mailto:sip%3Apinger@54.169.33.191"
                                target="_blank">sip:pinger@54.169.33.191</a>")</div>
                            <div>modparam("nathelper", "sipping_method",
                              "OPTIONS")</div>
                            <div>modparam("nathelper", "sipping_bflag",
                              8)<br>
                            </div>
                          </div>
                          <div><br>
                          </div>
                          <div>I find register information in console as
                            follow:</div>
                          <div>
                            <div>OpenSIPS$:online</div>
                            <div>Domain:: location table=512 records=4</div>
                            <div> <span style="white-space:pre-wrap"> </span> <span
                                style="white-space:pre-wrap"> </span>AOR::
                              u2099</div>
                            <div> <span style="white-space:pre-wrap"> </span>Contact:: <a
                                moz-do-not-send="true"
                                href="http://sip:u2099@118.163.76.241:65383/"
                                target="_blank">sip:u2099@118.163.76.241:65383</a> Q=</div>
                            <div> <span style="white-space:pre-wrap"> </span>Expires::
                              760</div>
                            <div> <span style="white-space:pre-wrap"> </span>Callid::
                              8IjzHDTRMF</div>
                            <div> <span style="white-space:pre-wrap"> </span>Cseq::
                              54</div>
                            <div> <span style="white-space:pre-wrap"> </span>User-agent::
                              LinphoneAndroid/2.5.0 (belle-sip/1.4.1)</div>
                            <div> <span style="white-space:pre-wrap"> </span>State::
                              CS_SYNC</div>
                            <div> <span style="white-space:pre-wrap"> </span>Flags::
                              0</div>
                            <div> <span style="white-space:pre-wrap"> </span>Cflags::
                              NAT</div>
                            <div> <span style="white-space:pre-wrap"> </span>Socket::
                              udp:<a moz-do-not-send="true"
                                href="http://172.31.20.192:5060/"
                                target="_blank">172.31.20.192:5060</a></div>
                            <div> <span style="white-space:pre-wrap"> </span>Methods::
                              4294967295</div>
                            <div> <span style="white-space:pre-wrap"> </span>SIP_instance::
&lt;urn:uuid:6d257aac-06d8-4938-8078-23065ae6bdb3&gt;</div>
                            <div> <span style="white-space:pre-wrap"> </span>Contact:: <a
                                moz-do-not-send="true"
                                href="http://sip:u2099@218.211.224.83:1024/"
                                target="_blank">sip:u2099@218.211.224.83:1024</a> Q=</div>
                            <div> <span style="white-space:pre-wrap"> </span>Expires::
                              3569</div>
                            <div> <span style="white-space:pre-wrap"> </span>Callid::
                              DwNOAXCG7A</div>
                            <div> <span style="white-space:pre-wrap"> </span>Cseq::
                              23</div>
                            <div> <span style="white-space:pre-wrap"> </span>User-agent::
                              LinphoneAndroid/2.5.0 (belle-sip/1.4.1)</div>
                            <div> <span style="white-space:pre-wrap"> </span>State::
                              CS_NEW</div>
                            <div> <span style="white-space:pre-wrap"> </span>Flags::
                              0</div>
                            <div> <span style="white-space:pre-wrap"> </span>Cflags::
                              NAT</div>
                            <div> <span style="white-space:pre-wrap"> </span>Socket::
                              udp:<a moz-do-not-send="true"
                                href="http://172.31.20.192:5060/"
                                target="_blank">172.31.20.192:5060</a></div>
                            <div> <span style="white-space:pre-wrap"> </span>Methods::
                              4294967295</div>
                            <div> <span style="white-space:pre-wrap"> </span>SIP_instance::
&lt;urn:uuid:6d257aac-06d8-4938-8078-23065ae6bdb3&gt;</div>
                            <div> <span style="white-space:pre-wrap"> </span>AOR::
                              u2098</div>
                            <div> <span style="white-space:pre-wrap"> </span>Contact:: <a
                                moz-do-not-send="true"
                                href="mailto:sip%3Au2098@218.211.224.83"
                                target="_blank">sip:u2098@218.211.224.83</a> Q=</div>
                            <div> <span style="white-space:pre-wrap"> </span>Expires::
                              3573</div>
                            <div> <span style="white-space:pre-wrap"> </span>Callid::
                              asla4m-yxG</div>
                            <div> <span style="white-space:pre-wrap"> </span>Cseq::
                              23</div>
                            <div> <span style="white-space:pre-wrap"> </span>User-agent::
                              LinphoneAndroid/2.5.0 (belle-sip/1.4.1)</div>
                            <div> <span style="white-space:pre-wrap"> </span>State::
                              CS_DIRTY</div>
                            <div> <span style="white-space:pre-wrap"> </span>Flags::
                              0</div>
                            <div> <span style="white-space:pre-wrap"> </span>Cflags:: </div>
                            <div> <span style="white-space:pre-wrap"> </span>Socket::
                              udp:<a moz-do-not-send="true"
                                href="http://172.31.20.192:5060/"
                                target="_blank">172.31.20.192:5060</a></div>
                            <div> <span style="white-space:pre-wrap"> </span>Methods::
                              4294967295</div>
                            <div> <span style="white-space:pre-wrap"> </span>SIP_instance::
&lt;urn:uuid:5177d940-b2f5-459d-bb01-da5e43b7599b&gt;</div>
                          </div>
                          <div><br>
                          </div>
                          <div>My question is :</div>
                          <div><br>
                          </div>
                          <div><br>
                          </div>
                          <div>why UA has two different record ?</div>
                          <div> and ua is behind NAT , but Cflag has no
                            nat ,why ?</div>
                          <div>Since I open sipping ( option package ) ,
                            why still has two record ,and still keep
                            time out ( incorrect register information) </div>
                          <div><br>
                          </div>
                          <div>How I to solve the question?</div>
                          <div><br>
                          </div>
                          <div>Thanks </div>
                          <div>Best Regard</div>
                          <div><br>
                          </div>
                          <div>JJ.Chiou</div>
                        </div>
                      </div>
                    </div>
                  </div>
                </div>
              </div>
            </div>
          </div>
        </div>
      </div>
      <br>
      <fieldset class="mimeAttachmentHeader"></fieldset>
      <br>
      <pre wrap="">_______________________________________________
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</pre>
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