<div dir="ltr">So how does this GSM stuff work in the USA? Would I got buy a cell phone plan from someone like AT&amp;T or T-Mobile, and then insert the SIM into these devices. The device would then covert the audio from GSM to SIP, and then I could use it like a SIP trunk?<div><br></div><div>What is the advantage of doing this over just buying a pure SIP trunk from an internet provider? </div><div><br></div><div><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, May 10, 2017 at 4:35 AM, David Villasmil <span dir="ltr">&lt;<a href="mailto:david.villasmil.work@gmail.com" target="_blank">david.villasmil.work@gmail.com</a>&gt;</span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">There&#39;s another chinese brand that has a 32 port, I&#39;ve used it, works pretty well, i think it&#39;s &quot;GoIP&quot; or something.<div class="HOEnZb"><div class="h5"><br><div class="gmail_quote"><div dir="ltr">On Wed, May 10, 2017 at 10:39 AM Bipin Patel &lt;<a href="mailto:bipin@xbipin.com" target="_blank">bipin@xbipin.com</a>&gt; wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
  
    
  
  <div bgcolor="#FFFFFF" text="#000000">
    <font size="-1"><font face="Arial">hi,<br>
        <br>
        we use matrix boxes but 4 port ones, they work quiet well<br>
        <br>
        <br>
      </font></font>
    <div class="m_4747617608464686624m_4151893210022548241moz-signature">
      Regards,<br>
      Bipin<br>
      <br>
      <br>
      <hr>
    </div>
    <div class="m_4747617608464686624m_4151893210022548241moz-cite-prefix"></div></div><div bgcolor="#FFFFFF" text="#000000"><div class="m_4747617608464686624m_4151893210022548241moz-cite-prefix">-------- Original Message --------<br>
      Subject: Re: [Freeswitch-users] Freeswitch PRI support<br>
      From: Deepika Yadav <a class="m_4747617608464686624m_4151893210022548241moz-txt-link-rfc2396E" href="mailto:deepikay@iiitd.ac.in" target="_blank">&lt;deepikay@iiitd.ac.in&gt;</a><br>
      To: FreeSWITCH Users Help
      <a class="m_4747617608464686624m_4151893210022548241moz-txt-link-rfc2396E" href="mailto:freeswitch-users@lists.freeswitch.org" target="_blank">&lt;freeswitch-users@lists.<wbr>freeswitch.org&gt;</a><br></div></div><div bgcolor="#FFFFFF" text="#000000"><div class="m_4747617608464686624m_4151893210022548241moz-cite-prefix">
      Date: 5/10/2017, 11:02:49 AM<br>
    </div></div><div bgcolor="#FFFFFF" text="#000000">
    <blockquote type="cite">
      <div dir="ltr">Hi,
        <div><br>
        </div>
        <div>I searched some gateways online. The ones available at ebay
          are cheap, the following link shows a gateway supporting 32
          SIMS for $859 :</div>
        <div><br>
        </div>
        <div><a href="http://www.ebay.com/itm/GoIP-32-32-Port-VoIP-GSM-Gateway-with-32-External-Antenna-/291811535942" target="_blank">http://www.ebay.com/itm/GoIP-<wbr>32-32-Port-VoIP-GSM-Gateway-<wbr>with-32-External-Antenna-/<wbr>291811535942</a><br>
        </div>
        <div><br>
        </div>
        <div>However, when I contacted a company called &quot;Matrix Telecom
          Solution&quot;, they gave the quote of $4150 for similar number of
          SIM support. On asking them to compare the two gateways, they
          said that the one available at ebay is a Chinese gateway about
          which they are apprehensive for the quality, warranty and
          working.</div>
        <div><br>
        </div>
        <div>Regards,</div>
        <div>Deepika</div>
        <div><br>
        </div>
      </div>
      <div class="gmail_extra"><br>
        <div class="gmail_quote">On Fri, May 5, 2017 at 4:58 PM, Raymond
          <span dir="ltr">&lt;<a href="mailto:xxxman2008@126.com" target="_blank">xxxman2008@126.com</a>&gt;</span>
          wrote:<br>
          <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
            <div style="line-height:1.7;color:#000000;font-size:14px;font-family:Arial"><br>
              <div>HI,</div>
              <div><br>
              </div>
              <div>Regarding this.  i have  asked some question of
                 module &quot;GSMOpen&quot;.   </div>
              <div><br>
              </div>
              <div>In fact ,i want to make Freeswitch box as  &quot;GSM VOIP
                Gateway&quot;  by using  &quot;gsmopen&quot;. But...seems  no one help
                me . :-(( .   If it worked , can save more money than
                 hardware gsm voip gateway ( GOIP ).</div>
              <span class="m_4747617608464686624m_4151893210022548241HOEnZb"><font color="#888888">
                  <div><br>
                  </div>
                  <div>Raymond</div>
                </font></span>
              <div>
                <div class="m_4747617608464686624m_4151893210022548241h5"><br>
                  <br>
                  <br>
                  At 2017-05-04 17:24:13, &quot;Giovanni Maruzzelli&quot; &lt;<a href="mailto:gmaruzz@gmail.com" target="_blank">gmaruzz@gmail.com</a>&gt;
                  wrote:<br>
                  <blockquote id="m_4747617608464686624m_4151893210022548241m_-4107753047036311900isReplyContent" style="PADDING-LEFT:1ex;MARGIN:0px 0px 0px 0.8ex;BORDER-LEFT:#ccc 1px solid">
                    <div dir="auto">For PRI you use Sangoma or Patton.
                      <div dir="auto"><br>
                      </div>
                      <div dir="auto">But, why don&#39;t you use an hardware
                        gateway sip&lt;-&gt;gsm?</div>
                      <div dir="auto"><br>
                      </div>
                      <div dir="auto">It would save you very big money.</div>
                      <div dir="auto"><br>
                      </div>
                      <div dir="auto">Check on ebay and google, there
                        are many of them, you put SIMs inside, and you
                        are good to go.</div>
                      <div dir="auto"><br>
                      </div>
                      <div dir="auto">-giovanni</div>
                      <div dir="auto"><br>
                        <br>
                        <div data-smartmail="gmail_signature" dir="auto">sent
                          from mobile<br>
                          cell: +39 347 266 56 18<br>
                          Giovanni Maruzzelli<br>
                          OpenTelecom.IT</div>
                      </div>
                    </div>
                    <div class="gmail_extra"><br>
                      <div class="gmail_quote">Il 04 mag 2017 11:13,
                        &quot;Deepika Yadav&quot; &lt;<a href="mailto:deepikay@iiitd.ac.in" target="_blank">deepikay@iiitd.ac.in</a>&gt;
                        ha scritto:<br type="attribution">
                        <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
                          <div dir="ltr">Hi,
                            <div><br>
                            </div>
                            <div>I am using Freeswitch in an application
                              that initiates conference calls amongst 20
                              users in cellular network (mobile phones
                              in GSM network). Currently, for the
                              VOIP-GSM gateway, we are using the service
                              from a company called Doorvaani. </div>
                            <div><br>
                            </div>
                            <div>But, since, the cost of call estimates
                              to be high and we cannot debug the call
                              drops; we are thinking to buy our own PRI
                              card. </div>
                            <div><br>
                            </div>
                            <div>I am seeking recommendation on
                              following points:</div>
                            <div>
                              <ol>
                                <li>Which card should I buy that is most
                                  easily configurable with the
                                  Freeswitch i.e. company and type. <br>
                                </li>
                                <li>Reference on how should I start to
                                  make Freeswitch configure with the PRI
                                  card and start sending and receiving
                                  calls. For the current gateway service
                                  in use, I simply put the
                                  authentication credentials for the
                                  corresponding VOIP line offered by the
                                  company Doorvaani in the external SIP
                                  Profile. In case of PRI, what all
                                  changes are needed?</li>
                              </ol>
                              <div>Regards,</div>
                              <div>Deepika</div>
                              <div><br>
                              </div>
                              -- <br>
                              <div class="m_4747617608464686624m_4151893210022548241m_-4107753047036311900m_-7836366835224071155gmail_signature" data-smartmail="gmail_signature">Regards<br>
                                Deepika<br>
                                <a href="https://www.iiitd.edu.in/%7Edeepikay/" target="_blank">https://www.iiitd.edu.in/~<wbr>deepikay/</a></div>
                            </div>
                          </div>
                          <br>
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                        </blockquote>
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                  </blockquote>
                </div>
              </div>
            </div>
            <br>
            <br>
            <span title="neteasefooter">
              <p> </p>
            </span><br>
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          </blockquote>
        </div>
        <br>
        <br clear="all">
        <div><br>
        </div>
        -- <br>
        <div class="m_4747617608464686624m_4151893210022548241gmail_signature" data-smartmail="gmail_signature">Regards<br>
          Deepika<br>
          <a href="https://www.iiitd.edu.in/%7Edeepikay/" target="_blank">https://www.iiitd.edu.in/~<wbr>deepikay/</a></div>
      </div>
      <br>
      <fieldset class="m_4747617608464686624m_4151893210022548241mimeAttachmentHeader"></fieldset>
      <br>
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