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    <p>Hello,</p>
    <p>indeed there is a pseudo-variable that gives the environment
      variables. Moreover, iirc, Luis Azedo added a while ago (it may be
      only from 5.3) support to resolve variables inside substdef (and
      maybe define) -- so eventually you should be able to do this with
      5.3.0:</p>
    <p>#!substdef "/PUBLICIP/$env(KAMPUBLICIP)/"</p>
    <p> listen=<a class="moz-txt-link-freetext" href="udp:$(local_ip):5060">udp:$(local_ip):5060</a> advertise  "PUBLICIP":5060</p>
    <p>It might not work for this specific case, because listen value is
      a little bit complex definition, not just string values. But with
      5.3 there is a command line parameter (-l -- lower case L) to
      specify listen socket with advertise address. So just remove
      listen from kamailio.cfg and the start kamailio like:</p>
    <p>kamailio -l proto:localaddr:lcoalport/publicaddr:publicport</p>
    <p>Like:</p>
    <p>kamailio -l <a class="moz-txt-link-freetext" href="udp:10.0.0.1:5080/1.2.3.4:5060">udp:10.0.0.1:5080/1.2.3.4:5060</a><br>
    </p>
    <p>See kamailio -h for more details.</p>
    <p>Cheers,<br>
      Daniel<br>
    </p>
    <div class="moz-cite-prefix">On 24.10.19 09:28, Rick Barenthin
      wrote:<br>
    </div>
    <blockquote type="cite"
cite="mid:CAPriEK7FvDLQNZcpiA-__M58t_encWJEVEGA_GQsox_pX9y_7w@mail.gmail.com">
      <meta http-equiv="content-type" content="text/html; charset=UTF-8">
      <div dir="auto">
        <div>I've never used it but wiki says:
          <div dir="auto"><br>
          </div>
          <div dir="auto">
            <h2 style="padding:0px;line-height:1.2;margin:0px 0px
              0.666em;color:rgb(51,51,51);font-family:arial,sans-serif">$env(NAME)
              - environment variables</h2>
            <div
style="margin:0px;padding:0px;color:rgb(51,51,51);font-family:arial,sans-serif;font-size:16px"
              dir="auto">
              <p style="margin:0px 0px 1.4em;padding:0px"><strong>$env(NAME)</strong> -
                value of the environment variable named NAME</p>
            </div>
          </div>
          So it should be possible.<br>
          <br>
          <div class="gmail_quote">
            <div dir="ltr" class="gmail_attr">Alex Balashov <<a
                href="mailto:abalashov@evaristesys.com" target="_blank"
                rel="noreferrer" moz-do-not-send="true">abalashov@evaristesys.com</a>>
              schrieb am Do., 24. Okt. 2019, 08:16:<br>
            </div>
            <blockquote class="gmail_quote" style="margin:0 0 0
              .8ex;border-left:1px #ccc solid;padding-left:1ex">
              <div dir="auto">It is not. But you can do this via any
                template system such as Jinja2, or a hand-rolled
                substitution script.<br>
                <br>
                <div dir="ltr">—
                  <div>Sent from mobile, with due apologies for brevity
                    and errors.</div>
                </div>
                <div dir="ltr"><br>
                  <blockquote type="cite">On Oct 24, 2019, at 2:02 AM,
                    Gaurav Bmotra <<a
                      href="mailto:saigauravmehra91@gmail.com"
                      rel="noreferrer noreferrer" target="_blank"
                      moz-do-not-send="true">saigauravmehra91@gmail.com</a>>
                    wrote:<br>
                    <br>
                  </blockquote>
                </div>
                <blockquote type="cite">
                  <div dir="ltr">
                    <div dir="ltr">hi 
                      <div>i using kamailio 5.2 </div>
                      <div>is it possible to use environmental variables
                        value in kamailio.cfg <br>
                        like i want to use local ip and public ip in
                        config file </div>
                      <div><br>
                      </div>
                      <div> listen=<a class="moz-txt-link-freetext" href="udp:$(local_ip):5060">udp:$(local_ip):5060</a> advertise 
                        $(public_ip):5060<br clear="all">
                        <div>if iti is possible then how i can use this </div>
                        <div><br>
                        </div>
                        <div><br>
                        </div>
                        <div>thank you </div>
                        -- <br>
                        <div dir="ltr" data-smartmail="gmail_signature">
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                                            <br>
                                            <br>
                                            <font color="#999999"><b>Regards:</b><br>
                                              Gaurav Kumar</font><br>
                                          </div>
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      <pre class="moz-quote-pre" wrap="">_______________________________________________
Kamailio (SER) - Users Mailing List
<a class="moz-txt-link-abbreviated" href="mailto:sr-users@lists.kamailio.org">sr-users@lists.kamailio.org</a>
<a class="moz-txt-link-freetext" href="https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users">https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users</a>
</pre>
    </blockquote>
    <pre class="moz-signature" cols="72">-- 
Daniel-Constantin Mierla -- <a class="moz-txt-link-abbreviated" href="http://www.asipto.com">www.asipto.com</a>
<a class="moz-txt-link-abbreviated" href="http://www.twitter.com/miconda">www.twitter.com/miconda</a> -- <a class="moz-txt-link-abbreviated" href="http://www.linkedin.com/in/miconda">www.linkedin.com/in/miconda</a>
Kamailio Advanced Training, Oct 21-23, 2019, Berlin, Germany -- <a class="moz-txt-link-freetext" href="https://asipto.com/u/kat">https://asipto.com/u/kat</a></pre>
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