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    <div style="font-family:Arial;font-size:13px;"><font face="Arial">You
        should not need to enable duplex streaming under normal
        circumstances, however some service providers are unable to
        handle 0.0.0.0 in the SDP properly.  Duplex streaming should be
        a sufficient workaround for those cases.<br>
        <br>
        -Adam<br>
      </font><br>
      <br>
      <span style="color:#000000;" class="headerSpan">
        <hr tabindex="0"><font style="font-size:x-small" face="Tahoma"><!--@A@--><b>From:</b>
          Peter Slow <a class="moz-txt-link-rfc2396E" href="mailto:peter.slow@gmail.com"><peter.slow@gmail.com></a><!--@A@--><br>
          <!--@D@--><b>Sent:</b> Mon, Nov 28, 2011 11:27:00 AM<!--@D@--><br>
          <!--@R@--><b>To:</b> Ahmed Elnagar
          <a class="moz-txt-link-rfc2396E" href="mailto:ahmed_elnagar@hotmail.com"><ahmed_elnagar@hotmail.com></a>, cisco voip
          <a class="moz-txt-link-rfc2396E" href="mailto:cisco-voip@puck.nether.net"><cisco-voip@puck.nether.net></a><!--@R@--><br>
          <!--@C@--><b>CC:</b>
          <!--@C@--><br>
          <!--@S@--><b>Subject:</b> Re: [cisco-voip] MoH with H323, MTP
          checked<!--@S@--><br>
        </font><br>
      </span>
      <blockquote style="border: medium none ! important; padding-left:
        0px ! important; padding-right: 0px ! important; margin-left:
        0px ! important; margin-right: 0px ! important; font-family:
        serif;"
cite="mid:CAMa5Jw5zMkmH5Dtx8OvHi0C+sztKVKvkHNYJ_iP_0iNOoWZ77w@mail.gmail.com"
        type="cite">I was in the middle of sending the below email when
        you found the workaround to your issue. The next troubleshooting
        steps are below for everyone else to see.<br>
        <br>
        you should not have to enable duplex streaming to resolve your
        issue under non-bug circumstances. If you are hitting CSCtl21854
        and enabling duplex streaming fixed your issue, the below
        instructions would've shown the gateway receiving packets - you
        would've known then that the gateway was most likely at fault
        for the silence, assuming the received packets had a good
        payload =)<br>
        <br>
        two things: <br>
        1. Make sure you remember to turn CEF back on since you said you
        disabled it<br>
        2. you should now notice when you place a call on hold that you
        see the remote IP of your MoH Server instead of 0.0.0.0 and the
        status should be sendrecv instead of recvonly. whole on hold.
        You'll need to follow calls a little differently to track down
        which ones are on hold now through your MTP, since it wont be as
        obvious.<br>
        <br>
        nice job finding your solution,<br>
        <br>
        -Peter<br>
        <br>
        <br>
        <div class="gmail_quote">On Mon, Nov 28, 2011 at 11:17 AM, Peter
          Slow <span dir="ltr"><<a moz-do-not-send="true"
              href="mailto:peter.slow@gmail.com">peter.slow@gmail.com</a>></span>
          wrote:<br>
          <blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt
            0.8ex; border-left: 1px solid rgb(204, 204, 204);
            padding-left: 1ex;">not sure what was goign on in that
            thread, but the next questions to ask are:<br>
            <br>
            when the PSTN party is placed on hold, you mentioned they
            don't hear anything. Tell me more: was there any noise at
            all such as an initial beep or repeating noise such as tone
            on hold, or is it just dead silence?<br>
            <br>
            what codec does the voip leg of your call establish using? -
            compare this to the MoH codecs enabled under IPVMSApp's
            service parameters.<br>
            <br>
            under the connection you see in "show sccp connection" if
            you take the port numbers from that output and find the
            corresponding call under sh rtpspi call, then take the call
            ID from that and look at the call in "sh rtpspi stat"
            repeatedly while on hold, are your receive packets
            increasing? (That command is hardware depedent. please send
            the list a show diag. or "sh diag | inc FRU" <br>
            <br>
            How many MoH Servers total are in your Gateway's MRGL?<br>
            <font color="#888888"><br>
              -Peter</font>
            <div>
              <div class="h5"><br>
                <br>
                <br>
                <br>
                <div class="gmail_quote">On Mon, Nov 28, 2011 at 11:04
                  AM, Ahmed Elnagar <span dir="ltr"><<a
                      moz-do-not-send="true"
                      href="mailto:ahmed_elnagar@hotmail.com"
                      target="_blank">ahmed_elnagar@hotmail.com</a>></span>
                  wrote:<br>
                  <blockquote class="gmail_quote" style="margin: 0pt 0pt
                    0pt 0.8ex; border-left: 1px solid rgb(204, 204,
                    204); padding-left: 1ex;">
                    <div link="blue" vlink="purple" lang="EN-US">
                      <div>
                        <p class="MsoNormal"><span style="font-size:
                            11pt; font-family:
                            "Calibri","sans-serif";
                            color: rgb(31, 73, 125);">And FYI I tried
                            disabling CEF and did not work also.</span></p>
                        <div>
                          <p class="MsoNormal"><span style="font-size:
                              11pt; font-family:
                              "Calibri","sans-serif";
                              color: rgb(31, 73, 125);"> </span></p>
                          <div>
                            <p class="MsoNormal"><b><span
                                  style="font-size: 8pt; font-family:
                                  "Verdana","sans-serif";
                                  color: gray;">Regards,</span></b></p>
                            <p class="MsoNormal"><b><span
                                  style="font-size: 8pt; font-family:
                                  "Verdana","sans-serif";
                                  color: gray;">Ahmed Elnagar </span></b><span
                                style="font-size: 8pt; font-family:
                                "Verdana","sans-serif";
                                color: gray;">|<b> Unified Communication
                                  Team Leader </b>| <b>CCIE #24697,
                                  Voice</b></span></p>
                            <p class="MsoNormal"><span style="font-size:
                                11pt; font-family:
                                "Calibri","sans-serif";
                                color: rgb(31, 73, 125);"><img
                                  src="cid:part1.08030908.07020501@cisco.com"
                                  alt="Description: Description: MS
                                  Green" height="42" width="209"></span><span
                                style="font-size: 11pt; font-family:
                                "Calibri","sans-serif";
                                color: rgb(31, 73, 125);"></span></p>
                          </div>
                          <p class="MsoNormal"><span style="font-size:
                              11pt; font-family:
                              "Calibri","sans-serif";
                              color: rgb(31, 73, 125);"> </span></p>
                        </div>
                        <div>
                          <div style="border-width: 1pt medium medium;
                            border-style: solid none none; border-color:
                            rgb(181, 196, 223) -moz-use-text-color
                            -moz-use-text-color; padding: 3pt 0in 0in;">
                            <p class="MsoNormal"><b><span
                                  style="font-size: 10pt; font-family:
                                  "Tahoma","sans-serif";">From:</span></b><span
                                style="font-size: 10pt; font-family:
                                "Tahoma","sans-serif";">
                                <a moz-do-not-send="true"
                                  href="mailto:cisco-voip-bounces@puck.nether.net"
                                  target="_blank">cisco-voip-bounces@puck.nether.net</a>
                                [mailto:<a moz-do-not-send="true"
                                  href="mailto:cisco-voip-bounces@puck.nether.net"
                                  target="_blank">cisco-voip-bounces@puck.nether.net</a>]
                                <b>On Behalf Of </b>Ahmed Elnagar<br>
                                <b>Sent:</b> Monday, November 28, 2011
                                5:59 PM<br>
                                <b>To:</b> 'Peter Slow'<br>
                                <b>Cc:</b> 'cisco voip'</span></p>
                            <div>
                              <div><br>
                                <b>Subject:</b> Re: [cisco-voip] MoH
                                with H323, MTP checked</div>
                            </div>
                          </div>
                        </div>
                        <div>
                          <div>
                            <p class="MsoNormal"> </p>
                            <p class="MsoNormal"><span style="font-size:
                                11pt; font-family:
                                "Calibri","sans-serif";
                                color: rgb(31, 73, 125);">Thanks peter
                                for the reply</span></p>
                            <p class="MsoNormal"><span style="font-size:
                                11pt; font-family:
                                "Calibri","sans-serif";
                                color: rgb(31, 73, 125);"> </span></p>
                            <p class="MsoNormal"><span style="font-size:
                                11pt; font-family:
                                "Calibri","sans-serif";
                                color: rgb(31, 73, 125);">First I think
                                I have the same issue like that guy</span></p>
                            <p class="MsoNormal"><span style="font-size:
                                11pt; font-family:
                                "Calibri","sans-serif";
                                color: rgb(31, 73, 125);"><a
                                  moz-do-not-send="true"
                                  href="https://supportforums.cisco.com/message/3333561#3333561"
                                  target="_blank">https://supportforums.cisco.com/message/3333561#3333561</a>
                              </span></p>
                            <p class="MsoNormal"><span style="font-size:
                                11pt; font-family:
                                "Calibri","sans-serif";
                                color: rgb(31, 73, 125);"> </span></p>
                            <p class="MsoNormal"><span style="font-size:
                                11pt; font-family:
                                "Calibri","sans-serif";
                                color: rgb(31, 73, 125);">to answer your
                                Qs</span></p>
                            <p class="MsoNormal"><span style="font-size:
                                11pt; font-family:
                                "Calibri","sans-serif";
                                color: rgb(31, 73, 125);"> </span></p>
                            <p><span style="font-size: 11pt;
                                font-family:
                                "Calibri","sans-serif";
                                color: rgb(31, 73, 125);"><span>1-<span
                                    style="font: 7pt "Times New
                                    Roman";">      </span></span></span><span
                                dir="LTR"></span><span style="font-size:
                                11pt; font-family:
                                "Calibri","sans-serif";
                                color: rgb(31, 73, 125);">Yes</span></p>
                            <p><span style="font-size: 11pt;
                                font-family:
                                "Calibri","sans-serif";
                                color: rgb(31, 73, 125);"><span>2-<span
                                    style="font: 7pt "Times New
                                    Roman";">      </span></span></span><span
                                dir="LTR"></span><span style="font-size:
                                11pt; font-family:
                                "Calibri","sans-serif";
                                color: rgb(31, 73, 125);">Yes </span></p>
                            <p><span style="font-size: 11pt;
                                font-family:
                                "Calibri","sans-serif";
                                color: rgb(31, 73, 125);"><span>3-<span
                                    style="font: 7pt "Times New
                                    Roman";">      </span></span></span><span
                                dir="LTR"></span><span style="font-size:
                                11pt; font-family:
                                "Calibri","sans-serif";
                                color: rgb(31, 73, 125);">MoH works fine
                                internally</span></p>
                            <p class="MsoNormal"><span style="font-size:
                                11pt; font-family:
                                "Calibri","sans-serif";
                                color: rgb(31, 73, 125);"> </span></p>
                            <p class="MsoNormal"><b><span
                                  style="font-size: 8pt; font-family:
                                  "Verdana","sans-serif";
                                  color: gray;">Regards,</span></b></p>
                            <p class="MsoNormal"><b><span
                                  style="font-size: 8pt; font-family:
                                  "Verdana","sans-serif";
                                  color: gray;">Ahmed Elnagar </span></b><span
                                style="font-size: 8pt; font-family:
                                "Verdana","sans-serif";
                                color: gray;">|<b> Unified Communication
                                  Team Leader </b>| <b>CCIE #24697,
                                  Voice</b></span></p>
                            <p class="MsoNormal"><span style="font-size:
                                11pt; font-family:
                                "Calibri","sans-serif";
                                color: rgb(31, 73, 125);"><img
                                  src="cid:part1.08030908.07020501@cisco.com"
                                  alt="Description: Description: MS
                                  Green" border="0" height="42"
                                  width="209"></span></p>
                            <p class="MsoNormal"><span style="font-size:
                                11pt; font-family:
                                "Calibri","sans-serif";
                                color: rgb(31, 73, 125);"> </span></p>
                            <div style="border-width: 1pt medium medium;
                              border-style: solid none none;
                              border-color: rgb(181, 196, 223)
                              -moz-use-text-color -moz-use-text-color;
                              padding: 3pt 0in 0in;">
                              <p class="MsoNormal"><b><span
                                    style="font-size: 10pt; font-family:
"Tahoma","sans-serif";">From:</span></b><span
                                  style="font-size: 10pt; font-family:
                                  "Tahoma","sans-serif";">
                                  Peter Slow [<a moz-do-not-send="true"
                                    href="mailto:peter.slow@gmail.com"
                                    target="_blank">mailto:peter.slow@gmail.com</a>]
                                  <br>
                                  <b>Sent:</b> Monday, November 28, 2011
                                  5:45 PM<br>
                                  <b>To:</b> Ahmed Elnagar; cisco voip<br>
                                  <b>Subject:</b> Re: [cisco-voip] MoH
                                  with H323, MTP checked</span></p>
                            </div>
                            <p class="MsoNormal"> </p>
                            <p class="MsoNormal" style="margin-bottom:
                              12pt;">
                              Oops, adding the list back in. Sorry for
                              spamming you Ahmed =) I'm better at media
                              resources than I am at email...</p>
                            <div>
                              <p class="MsoNormal">On Mon, Nov 28, 2011
                                at 10:43 AM, Peter Slow <<a
                                  moz-do-not-send="true"
                                  href="mailto:peter.slow@gmail.com"
                                  target="_blank">peter.slow@gmail.com</a>>
                                wrote:</p>
                              <p class="MsoNormal" style="margin-bottom:
                                12pt;">0.0.0.0 is normal if you are
                                seeing it in the remote ip address field
                                of a sh sccp  command from the IOS MTP.
                                That is normal when you dont have
                                full-duplex streaming enabled for MoH.
                                By default CUCM wont make a remote
                                device send audio to the MoH Server,
                                since that's sort of a waste of
                                bandwidth. That behavior can be changed,
                                but is most likely not your issue.<br>
                                <br>
                                forgive me for asking stupid questions
                                but I want to start at square one.<br>
                                <br>
                                1. Do you have two way audio to begin
                                with before the PSTN party is placed on
                                hold? <br>
                                2. Are you sure you can ping the MoH
                                Server being allocated from the IOS MTP
                                that was in use?<br>
                                3. if that same IP Phone places another
                                IP Phone at a local site on hold, does
                                that person get MoH? What about at a
                                remote site?<br>
                                <br>
                                we can dig deeper once i know those
                                things ;) there are a couple things to
                                look at but this shouldnt be hard for us
                                to fix.<br>
                                <br>
                                -Pete</p>
                              <div>
                                <div>
                                  <div>
                                    <p class="MsoNormal">On Mon, Nov 28,
                                      2011 at 10:28 AM, Ahmed Elnagar
                                      <<a moz-do-not-send="true"
                                        href="mailto:ahmed_elnagar@hotmail.com"
                                        target="_blank">ahmed_elnagar@hotmail.com</a>>
                                      wrote:</p>
                                  </div>
                                </div>
                                <blockquote style="border-width: medium
                                  medium medium 1pt; border-style: none
                                  none none solid; border-color:
                                  -moz-use-text-color
                                  -moz-use-text-color
                                  -moz-use-text-color rgb(204, 204,
                                  204); padding: 0in 0in 0in 6pt;
                                  margin: 5pt 0in 5pt 4.8pt;">
                                  <div>
                                    <div>
                                      <div>
                                        <div>
                                          <p class="MsoNormal">Hi all;</p>
                                          <p class="MsoNormal"> </p>
                                          <p class="MsoNormal">I have a
                                            h323 gateway for PSTN
                                            calling through E1, I have
                                            configured MRG and MRGL so
                                            that PSTN callers put on
                                            hold should hear MOH;
                                            however they don’t</p>
                                          <p class="MsoNormal"> </p>
                                          <p class="MsoNormal">I have
                                            MTP required checked and
                                            MRGL points to a MTP device
                                            that is configured on the
                                            same gateway “with same IP
                                            address for bind h323 and
                                            SCCP”</p>
                                          <p class="MsoNormal"> </p>
                                          <p class="MsoNormal">I can see
                                            the call when put on hold
                                            that the hold leg is
                                            pointing to 0.0.0.0; when I
                                            change the MTP device to
                                            CUCM it works fine.</p>
                                          <p class="MsoNormal">
                                             </p>
                                          <p class="MsoNormal">Any
                                            ideas?</p>
                                          <p class="MsoNormal"> </p>
                                          <p class="MsoNormal"><b><span
                                                style="font-size: 8pt;
                                                font-family:
                                                "Verdana","sans-serif";
                                                color: gray;">Regards,</span></b></p>
                                          <p class="MsoNormal"><b><span
                                                style="font-size: 8pt;
                                                font-family:
                                                "Verdana","sans-serif";
                                                color: gray;">Ahmed
                                                Elnagar </span></b><span
                                              style="font-size: 8pt;
                                              font-family:
                                              "Verdana","sans-serif";
                                              color: gray;">|<b> Unified
                                                Communication Team
                                                Leader </b>| <b>CCIE
                                                #24697, Voice</b></span></p>
                                          <p class="MsoNormal"><span
                                              style="color: rgb(31, 73,
                                              125);"><img
                                                src="cid:part1.08030908.07020501@cisco.com"
                                                alt="Description:
                                                Description: MS Green"
                                                border="0" height="42"
                                                width="209"></span></p>
                                          <p class="MsoNormal">
                                             </p>
                                        </div>
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                                  <p class="MsoNormal"
                                    style="margin-bottom: 12pt;">_______________________________________________<br>
                                    cisco-voip mailing list<br>
                                    <a moz-do-not-send="true"
                                      href="mailto:cisco-voip@puck.nether.net"
                                      target="_blank">cisco-voip@puck.nether.net</a><br>
                                    <a moz-do-not-send="true"
                                      href="https://puck.nether.net/mailman/listinfo/cisco-voip"
                                      target="_blank">https://puck.nether.net/mailman/listinfo/cisco-voip</a></p>
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        <pre wrap="">_______________________________________________
cisco-voip mailing list
<a class="moz-txt-link-abbreviated" href="mailto:cisco-voip@puck.nether.net">cisco-voip@puck.nether.net</a>
<a class="moz-txt-link-freetext" href="https://puck.nether.net/mailman/listinfo/cisco-voip">https://puck.nether.net/mailman/listinfo/cisco-voip</a>
</pre>
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