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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><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><table class=MsoNormalTable border=1 cellspacing=0 cellpadding=0 width="100%" style='width:100.0%;border-collapse:collapse;border:none'><tr><td width="22%" style='width:22.0%;border:inset #111111 1.0pt;padding:0in 0in 0in 0in'><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'><img width=160 height=100 id="Picture_x0020_1" src="cid:image001.gif@01CD2233.4A32EBA0"></span><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p></o:p></span></p></td><td width="78%" style='width:78.0%;border:inset #111111 1.0pt;border-left: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></td></tr></table><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span 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></div></body></html>