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    <p>Hello,</p>
    <p>Are you tried to use  <b>absolute_codec_string</b> in the
      outbound block of your dialplan?<br>
    </p>
    <p>like:</p>
    <p><action application="set"
      data="absolute_codec_string=PCMU@20i"/></p>
    <p><font face="Times New Roman, serif">Regards</font><br>
    </p>
    <pre class="moz-signature" cols="72">---
I'm SoCIaL, MayBe</pre>
    <div class="moz-cite-prefix">El 28/12/2018 a las 11:05, Joseph Waite
      escribió:<br>
    </div>
    <blockquote type="cite"
      cite="mid:etPan.5c2649c8.34c014e6.11198@tm.net.uk">
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      <div style="font-family:Helvetica,Arial;font-size:13px; ">Evening
        All.</div>
      <div style="font-family:Helvetica,Arial;font-size:13px; "><br>
      </div>
      <div style="font-family:Helvetica,Arial;font-size:13px; ">I am
        having an issue, currently with Cisco SPA phones, where they are
        trying to use a prime of 30, however one of our providers does
        not support this and fails the call.</div>
      <div style="font-family:Helvetica,Arial;font-size:13px; "><br>
      </div>
      <div style="font-family:Helvetica,Arial;font-size:13px; ">Customer
        does not notice as call fails over to another provider as it
        should, however the failover provider is more expensive so not
        ideal for us.</div>
      <div style="font-family:Helvetica,Arial;font-size:13px; "><br>
      </div>
      <div style="font-family:Helvetica,Arial;font-size:13px; "><br>
        We don’t notice this unless we examine cdr logs.</div>
      <div style="font-family:Helvetica,Arial;font-size:13px; "><br>
      </div>
      <div style="font-family:Helvetica,Arial;font-size:13px; ">Is there
        a way, either to tell freeswitch to send a response to the phone
        negotiating time of 20 or to refuse the call if it comes in with
        time of 30?</div>
      <div style="font-family:Helvetica,Arial;font-size:13px; "><br>
      </div>
      <div style="font-family:Helvetica,Arial;font-size:13px; ">Regards</div>
      <br>
      <fieldset class="mimeAttachmentHeader"></fieldset>
      <pre class="moz-quote-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>
<a class="moz-txt-link-freetext" href="https://cluecon.com">https://cluecon.com</a>

FreeSWITCH-users mailing list
<a class="moz-txt-link-abbreviated" href="mailto:FreeSWITCH-users@lists.freeswitch.org">FreeSWITCH-users@lists.freeswitch.org</a>
<a class="moz-txt-link-freetext" href="http://lists.freeswitch.org/mailman/listinfo/freeswitch-users">http://lists.freeswitch.org/mailman/listinfo/freeswitch-users</a>
UNSUBSCRIBE:<a class="moz-txt-link-freetext" href="http://lists.freeswitch.org/mailman/options/freeswitch-users">http://lists.freeswitch.org/mailman/options/freeswitch-users</a>
<a class="moz-txt-link-freetext" href="https://freeswitch.com">https://freeswitch.com</a></pre>
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