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<p class=MsoNormal><span style='color:#1F497D'>Tim, we have implemented this
very solution for a public utility which wanted to multicast the board meetings
for employees. For the connectivity we used an E&M voice port in a router
(no loop or ground start required for E&M) and connected this directly to
the audio source from the room audio system. The router configuration was a PLAR
configuration on the voice port and a dial-peer which set the destination to be
a multicast address. Then there is no need for any 3rd party software or
additional cost. Then with a simple one page IP Phone service the employees
could listen via a the IP phone or with VLC on the PC.<o:p></o:p></span></p>
<div>
<p class=MsoNormal><span style='color:#0070C0'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#0070C0'>Let me know if you want I could
probably dig up the exact configuration we used on the router.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#0070C0'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-AU style='font-size:9.0pt;color:#0070C0'>Regards,</span><span
lang=EN-AU style='font-size:4.0pt;color:#0070C0'><o:p></o:p></span></p>
<p class=MsoNormal><b><span style='font-size:4.0pt;font-family:"Cambria","serif";
font-variant:small-caps;color:#1F497D'><o:p> </o:p></span></b></p>
<p class=MsoNormal><b><span style='font-size:12.0pt;font-family:"Cambria","serif";
font-variant:small-caps;color:#1F497D'>John Franklin </span></b><b><span
style='font-family:"Cambria","serif";font-variant:small-caps;color:#1F497D'> </span></b><b><span
style='color:#1F497D'>| john.franklin@voipintegration.com<o:p></o:p></span></b></p>
<p class=MsoNormal><b><span style='font-family:"Trebuchet MS","sans-serif";
color:#0070C0'>VoIP Integration</span></b><span style='color:#1F497D'> </span><b><span
style='color:#1F497D'>| </span></b><i><u><span style='font-size:10.0pt;
font-family:"Cambria","serif";color:#0070C0'><a
href="http://www.voipintegration.com/" target="_blank"
title="http://www.enpointe.com/"><span style='color:#0070C0'>www.VoIPintegration.com</span></a></span></u></i><b><span
style='color:#1F497D'><o:p></o:p></span></b></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial Narrow","sans-serif";
color:black'>201K Sand Creek Road Brentwood, CA, USA. 94513 <o:p></o:p></span></p>
<p class=MsoNormal><b><i><span style='font-size:10.0pt;font-family:"Cambria","serif";
color:black'>Tel:</span></i></b><span style='font-size:10.0pt;color:black'> </span><span
style='font-size:10.0pt;font-family:"Arial Narrow","sans-serif";color:black'>+1-925-513-4400</span><span
style='font-size:10.0pt;font-family:"Agency FB","sans-serif";color:black'><o:p></o:p></span></p>
<p class=MsoNormal><b><i><span style='font-size:10.0pt;font-family:"Cambria","serif";
color:black'>Fax:</span></i></b><span style='font-size:10.0pt;color:black'> +</span><span
style='font-size:10.0pt;font-family:"Arial Narrow","sans-serif";color:black'>1-925-513-4401<o:p></o:p></span></p>
<p class=MsoNormal><i><u><span style='font-family:"Cambria","serif";color:#1F497D'><o:p><span
style='text-decoration:none'> </span></o:p></span></u></i></p>
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<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
cisco-voip-bounces@puck.nether.net [mailto:cisco-voip-bounces@puck.nether.net] <b>On
Behalf Of </b>Tim Reimers<br>
<b>Sent:</b> Tuesday, April 24, 2012 1:17 PM<br>
<b>To:</b> cisco-voip@puck.nether.net<br>
<b>Subject:</b> [cisco-voip] Streaming multicast audio source to an IP phone<o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Hi everyone-<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>I’m researching how to possibly do something with IP
phones and multicast—<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>We want to stream audio from meetings in a very
plug-and-play user-friendly way,<o:p></o:p></p>
<p class=MsoNormal>to IP phones and also PCs on the network.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>I will be locating some type of hardware that can be
connected to the line out of an audio system to pick up the audio, and provide
a <o:p></o:p></p>
<p class=MsoNormal>multicast stream. <o:p></o:p></p>
<p class=MsoNormal>The multicast stream will NOT be coming from an IP phone
– <o:p></o:p></p>
<p class=MsoNormal>It will be something like a PC with VLC loaded on it, or
with proof of concept to get some funding, I might use a VBrick or something
like that.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>We want it to be a black box that a non-technical user can
just switch on along with the audio system for the meeting room, and streaming <o:p></o:p></p>
<p class=MsoNormal>will automatically begin.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>On the receive side, we want users to be able to listen to
the stream on an IP phone or a PC, without having to<o:p></o:p></p>
<p class=MsoNormal>do much more than select a service or dial a number on the
system, or click a link with a PC.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>This is a one-way listen to the meeting; there is no need or
requirement for audio from the client side, so the IP Phone should
automatically go into speakerphone mode with mute, or allow audio to
handset/headset<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>I have seen the below from the IP Phone SDK – I
don’t know if I could leverage that into a service that is <o:p></o:p></p>
<p class=MsoNormal>pre-programmed to join a multicast “conference”
(aka audio stream, for my purposes) <o:p></o:p></p>
<p class=MsoNormal>on a known multicast IP.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Thanks for any advice you guys have! <o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>I know sometimes I forget to come back in here and thank you
for times you give me great assistance-<o:p></o:p></p>
<p class=MsoNormal>Along those lines, major thanks to Peter Snow and others who
assisted me with<o:p></o:p></p>
<p class=MsoNormal>echo cancelling questions and PRI setup! <o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b><i><span
style='font-size:12.0pt;font-family:"Arial","sans-serif"'>14. MConference (JSP)</span></i></b><span
style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p></o:p></span></p>
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<p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'><img
border=0 width=160 height=100 id="Picture_x0020_1"
src="cid:image003.gif@01CD224D.67F83B80"><o:p></o:p></span></p>
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none;padding:0in 0in 0in 0in'>
<p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'>MConference
is a sample application which allows users to create, join, and control IP
multicast conferences<br>
from an XML phone service. It's a good example of the power of XML services
and IP multicast - providing a large-scale (thousands of participants),
arbitrated conference using a simple web application.<br>
Conference arbitration can be enabled/disabled by the conference owner. When
arbitration is enabled participants must request permission which is then
granted by the conference owner. When conference arbitration is disabled,
participants can simply push-to-talk, similar to a hoot-and-holler network.<o:p></o:p></span></p>
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style='font-size:12.0pt;font-family:"Times New Roman","serif"'> <o:p></o:p></span></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
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