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    Maybe a misconfigured endpoint on the other side?<br>
    <br>
    <div class="moz-cite-prefix">Am 22.08.2018 um 22:15 schrieb Paul
      Muaddib:<br>
    </div>
    <blockquote type="cite"
cite="mid:CAEjNe_EAzwYMOO3niqa38nm1u1V8GZ=fThHHk4csr+BM1j9jqg@mail.gmail.com">
      <meta http-equiv="content-type" content="text/html; charset=utf-8">
      <div dir="ltr">Hi,<br>
        <br>
        <div>It is definitely not a Fax. The guys, who are calling us
          from this number, are actually complaining that we are not
          reachable. But when we call them back the voice call perfectly
          works. Other Inbound calls are no problem.<br>
        </div>
        <br>
        Best regards,<br>
        Paul</div>
      <br>
      <div class="gmail_quote">
        <div dir="ltr">Am Mi., 22. Aug. 2018 um 21:53 Uhr schrieb
          Vallimamod Abdullah <<a href="mailto:vma@vallimamod.org"
            moz-do-not-send="true">vma@vallimamod.org</a>>:<br>
        </div>
        <blockquote class="gmail_quote" style="margin:0 0 0
          .8ex;border-left:1px #ccc solid;padding-left:1ex">
          <div style="word-wrap:break-word;line-break:after-white-space">Hi,
            <div><br>
            </div>
            <div>When there is udptl media type in sdp, freeswitch
              ignores the audio type. That's why you are getting the
              codec error (if you don't have t38 enabled.)</div>
            <div>The caller looks like a fax machine, which explains why
              you get a direct t38 request and not a reinvite.</div>
            <div><br>
            </div>
            <div><br>
            </div>
            <div>Best Regards,<br>
              <div>
                <div dir="auto"
style="color:rgb(0,0,0);letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none;word-wrap:break-word;line-break:after-white-space">
                  <div dir="auto"
style="color:rgb(0,0,0);letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;word-wrap:break-word;line-break:after-white-space">
                    <div dir="auto"
style="color:rgb(0,0,0);letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;word-wrap:break-word;line-break:after-white-space">
                      <div
style="color:rgb(0,0,0);letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;word-wrap:break-word;line-break:after-white-space">
                        <div
style="color:rgb(0,0,0);letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;word-wrap:break-word;line-break:after-white-space">
                          <div
style="color:rgb(0,0,0);letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;word-wrap:break-word;line-break:after-white-space">
                            <div
style="color:rgb(0,0,0);letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;word-wrap:break-word;line-break:after-white-space">-- <br>
                              Vallimamod Abdullah</div>
                            <div
style="color:rgb(0,0,0);letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;word-wrap:break-word;line-break:after-white-space">SIP
                              Solutions</div>
                            <div
style="color:rgb(0,0,0);letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;word-wrap:break-word;line-break:after-white-space"><a
                                href="mailto:vma@sip.solutions"
                                target="_blank" moz-do-not-send="true">vma@sip.solutions</a><br>
                            </div>
                            <div
style="color:rgb(0,0,0);letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;word-wrap:break-word;line-break:after-white-space"><a
                                href="http://linkedin.com/in/vallimamod"
                                target="_blank" moz-do-not-send="true">linkedin.com/in/vallimamod</a><br>
                              .</div>
                          </div>
                        </div>
                      </div>
                    </div>
                  </div>
                </div>
              </div>
              <div><br>
                <blockquote type="cite">
                  <div>On 22 Aug 2018, at 15:55, Paul Muaddib <<a
                      href="mailto:paul.muaddib83@gmail.com"
                      target="_blank" moz-do-not-send="true">paul.muaddib83@gmail.com</a>>
                    wrote:</div>
                  <br
                    class="m_-4255223939939954560Apple-interchange-newline">
                  <div>
                    <div dir="ltr">
                      <div>vars.xml<br>
                        <br>
                          <X-PRE-PROCESS cmd="set"
                        data="global_codec_prefs=PCMA,PCMU"/><br>
                          <X-PRE-PROCESS cmd="set"
                        data="outbound_codec_prefs=PCMA,PCMU"/><br>
                        <br>
                      </div>
                      <div class="m_-4255223939939954560gmail-layoutRow">
                        <div
                          class="m_-4255223939939954560gmail-left-pad">
                          <div
                            class="m_-4255223939939954560gmail-gwt-HTML">My
                            phones, all Grandstream GXP2140, accept PCMA
                            and PCMU</div>
                          <div
                            class="m_-4255223939939954560gmail-gwt-HTML"><br>
                          </div>
                          <div
                            class="m_-4255223939939954560gmail-gwt-HTML">I
                            don't have trouble with other people calling
                            me<br>
                          </div>
                        </div>
                      </div>
                    </div>
                    <br>
                    <div class="gmail_quote">
                      <div dir="ltr">Am Mi., 22. Aug. 2018 um 15:21 Uhr
                        schrieb Thorsten Göllner <<a
                          href="mailto:tg-maillistings@level5.de"
                          target="_blank" moz-do-not-send="true">tg-maillistings@level5.de</a>>:<br>
                      </div>
                      <blockquote class="gmail_quote" style="margin:0 0
                        0 .8ex;border-left:1px #ccc
                        solid;padding-left:1ex">
                        <div text="#000000" bgcolor="#FFFFFF"> Only
                          PCMA@8000 is offered. Check device if codec is
                          activated.<br>
                          <br>
                          <div
                            class="m_-4255223939939954560m_3731525015767878569moz-cite-prefix">Am
                            21.08.2018 um 15:06 schrieb Paul Muaddib:<br>
                          </div>
                          <blockquote type="cite">
                            <div dir="ltr">
                              <div>Hi,</div>
                              <div><br>
                              </div>
                              <div>I have a rarely error where I get
                                this failure message in the log file. I
                                am bit wondering because this is suposed
                                to be a normal voice call and not a fax.<br>
                              </div>
                              <div><br>
                              </div>
                              <div>Best regards,<br>
                              </div>
                              <div>Paul.<br>
                              </div>
                              <div><br>
                              </div>
                              <div>fe3eed7c-e03a-40af-bc2e-ae0bfe54bb28
                                2018-08-20 14:04:54.056776 [INFO]
                                switch_ivr_originate.c:1215 Sending
                                early media<br>
                                fe3eed7c-e03a-40af-bc2e-ae0bfe54bb28
                                2018-08-20 14:04:54.056776 [ERR]
                                mod_sofia.c:2343 CODEC NEGOTIATION
                                ERROR.  SDP:<br>
                                fe3eed7c-e03a-40af-bc2e-ae0bfe54bb28
                                v=0^M<br>
                                fe3eed7c-e03a-40af-bc2e-ae0bfe54bb28 o=-
                                20012711 20012711 IN IP4 217.0.15.67^M<br>
                                fe3eed7c-e03a-40af-bc2e-ae0bfe54bb28
                                s=on transit^M<br>
                                fe3eed7c-e03a-40af-bc2e-ae0bfe54bb28
                                c=IN IP4 X.X.X.X^M<br>
                                fe3eed7c-e03a-40af-bc2e-ae0bfe54bb28 t=0
                                0^M<br>
                                fe3eed7c-e03a-40af-bc2e-ae0bfe54bb28
                                m=audio 13274 RTP/AVP 8 118 126 101^M<br>
                                fe3eed7c-e03a-40af-bc2e-ae0bfe54bb28
                                a=rtpmap:8 PCMA/8000^M<br>
                                fe3eed7c-e03a-40af-bc2e-ae0bfe54bb28
                                a=rtpmap:118 PCMA/8000^M<br>
                                fe3eed7c-e03a-40af-bc2e-ae0bfe54bb28
                                a=rtpmap:126 CLEARMODE/8000^M<br>
                                fe3eed7c-e03a-40af-bc2e-ae0bfe54bb28
                                a=rtpmap:101 telephone-event/8000^M<br>
                                fe3eed7c-e03a-40af-bc2e-ae0bfe54bb28
                                a=fmtp:101 0-15^M<br>
                                fe3eed7c-e03a-40af-bc2e-ae0bfe54bb28
                                a=gpmd:118 vbd=yes^M<br>
                                fe3eed7c-e03a-40af-bc2e-ae0bfe54bb28
                                a=ptime:20^M<br>
                                fe3eed7c-e03a-40af-bc2e-ae0bfe54bb28
                                m=image 11232 udptl t38^M<br>
                                fe3eed7c-e03a-40af-bc2e-ae0bfe54bb28
                                a=T38FaxVersion:0^M<br>
                                fe3eed7c-e03a-40af-bc2e-ae0bfe54bb28
                                a=T38MaxBitRate:14400^M<br>
                                fe3eed7c-e03a-40af-bc2e-ae0bfe54bb28
                                a=T38FaxMaxBuffer:3000^M<br>
                                fe3eed7c-e03a-40af-bc2e-ae0bfe54bb28
                                a=T38FaxMaxDatagram:500^M<br>
                                fe3eed7c-e03a-40af-bc2e-ae0bfe54bb28
                                a=T38FaxRateManagement:transferredTCF^M<br>
                                fe3eed7c-e03a-40af-bc2e-ae0bfe54bb28
                                a=T38FaxUdpEC:t38UDPRedundancy^M<br>
                                fe3eed7c-e03a-40af-bc2e-ae0bfe54bb28<br>
                                fe3eed7c-e03a-40af-bc2e-ae0bfe54bb28
                                2018-08-20 14:04:54.056776 [NOTICE]
                                switch_channel.c:3515 Hangup
                                sofia/external/+<a
                                  href="mailto:49XXXXXXXXX@sip-trunk.telekom.de"
                                  target="_blank" moz-do-not-send="true">49XXXXXXXXX@sip-trunk.telekom.de</a>
                                [CS_EXECUTE] [INCOMPATIBLE_DESTINATION]<br>
                              </div>
                            </div>
                          </blockquote>
                        </div>
                      </blockquote>
                    </div>
                  </div>
                </blockquote>
              </div>
              <br>
            </div>
          </div>
_________________________________________________________________________<br>
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            target="_blank" moz-do-not-send="true">https://freeswitch.org/confluence</a><br>
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      <pre wrap="">_________________________________________________________________________
Professional FreeSWITCH Services
<a class="moz-txt-link-abbreviated" href="mailto:sales@freeswitch.com">sales@freeswitch.com</a>
<a class="moz-txt-link-freetext" href="https://freeswitch.com">https://freeswitch.com</a>

Official FreeSWITCH Sites
<a class="moz-txt-link-freetext" href="https://freeswitch.com/oss">https://freeswitch.com/oss</a>
<a class="moz-txt-link-freetext" href="https://freeswitch.org/confluence">https://freeswitch.org/confluence</a>
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<a class="moz-txt-link-freetext" href="https://freeswitch.com">https://freeswitch.com</a></pre>
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