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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">It is a signaling method really. Some systems use dry contact alone with no audio pair. Other systems, such as some paging systems, use it for signaling to
open and close an audio channel on a second pair of wires.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:black"><o:p> </o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:black">Eric Butcher<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-size:8.0pt;font-family:"Calibri","sans-serif";color:black">Cisco Unified Communications Engineer</span></b><b><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:black"><br>
</span></b><b><span style="font-size:7.5pt;font-family:"Calibri","sans-serif";color:red">CDW</span></b><span style="font-size:7.5pt;font-family:"Arial","sans-serif";color:gray"> Professional Services</span><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:7.5pt;font-family:"Arial","sans-serif";color:gray">11711 N Meridian, Ste 225</span><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:7.5pt;font-family:"Arial","sans-serif";color:gray">Carmel, IN 46032<br>
</span><span style="font-size:10.0pt;font-family:Wingdings;color:black">(</span><span style="font-size:7.5pt;font-family:"Arial","sans-serif";color:black"> 317.569.4282 - IP Phone<br>
</span><span style="font-size:10.0pt;font-family:Wingdings;color:black">(</span><span style="font-size:7.5pt;font-family:"Arial","sans-serif";color:black"> 765.744.1458 - Mobile<br>
</span><span style="font-size:10.0pt;font-family:Wingdings;color:black">*</span><span style="font-size:7.5pt;font-family:"Arial","sans-serif";color:black">
<a href="mailto:eric.butcher@cdw.com">eric.butcher@cdw.com</a></span><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"Arial","sans-serif";color:black"><a href="http://www.cdw.com/">http://www.cdw.com/</a><o:p></o:p></span></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>Lelio Fulgenzi<br>
<b>Sent:</b> Tuesday, November 23, 2010 1:40 PM<br>
<b>To:</b> Neal Haas<br>
<b>Cc:</b> cisco-voip@puck.nether.net<br>
<b>Subject:</b> Re: [cisco-voip] Dry Closure Phones<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><span style="font-size:10.0pt;font-family:"Verdana","sans-serif";color:black">ok....maybe i was thinking of clean room phones.<br>
<br>
<a href="http://en.wikipedia.org/wiki/Cleanroom">http://en.wikipedia.org/wiki/Cleanroom</a><br>
<br>
the dry contact, closure if for triggering external actions then?<br>
<br>
---<br>
Lelio Fulgenzi, B.A.<br>
Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1<br>
(519) 824-4120 x56354 (519) 767-1060 FAX (JNHN)<br>
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^<br>
Cooking with unix is easy. You just sed it and forget it. <br>
- LFJ (with apologies to Mr. Popeil)<br>
<br>
<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Verdana","sans-serif";color:black">From:
</span></b><span style="font-size:10.0pt;font-family:"Verdana","sans-serif";color:black">"Neal Haas" <nhaas@co.fresno.ca.us><br>
<b>To: </b>"Lelio Fulgenzi" <lelio@uoguelph.ca>, "David Zhars" <dzhars@gmail.com><br>
<b>Cc: </b>"cisco-voip@puck.nether.net" <cisco-voip@puck.nether.net><br>
<b>Sent: </b>Tuesday, November 23, 2010 1:29:22 PM<br>
<b>Subject: </b>RE: [cisco-voip] Dry Closure Phones<br>
<br>
<br>
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Correct me if I am wrong, Dry Closure or Contact is not for the phones itself, but that allow you to run bells or chimes, or door openers. I have read about
Valcom units doing this for stuff like Door openers. I am looking into it but try out (<a href="http://www.valcom.com/techsupport/ip_solutions/ip_intercomdoorphones.htm" target="_blank">http://www.valcom.com/techsupport/ip_solutions/ip_intercomdoorphones.htm</a>).
Stab at the correct web page, but it is at this web site or call them and ask.</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> </span><span style="color:black"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New";color:#1F497D">Neal Haas</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D"> </span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D">1020 S 10th St </span><span style="font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D"><br>
</span><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D">Fresno, CA 93702</span><span style="font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D">
</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New";color:#1F497D">Desk 559.600.5890</span><span style="color:black"><o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black"> cisco-voip-bounces@puck.nether.net [mailto:cisco-voip-bounces@puck.nether.net]
<b>On Behalf Of </b>Lelio Fulgenzi<br>
<b>Sent:</b> Tuesday, November 23, 2010 10:15 AM<br>
<b>To:</b> David Zhars<br>
<b>Cc:</b> cisco-voip@puck.nether.net<br>
<b>Subject:</b> Re: [cisco-voip] Dry Closure Phones</span><span style="color:black"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:black"> <o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><span style="font-size:10.0pt;font-family:"Verdana","sans-serif";color:black">From what I understand, dry closure or contact has to do with the isolating of any electrical equipment from the atmosphere. For
example, if you were working in an area with volatile gases, you'd want a dry contact telephone. I think this is only available in analog sets for now, so you might have to deal with a VG22x gateway that registers to SRST and feeds the analog dry contact phone.<br>
<br>
---<br>
Lelio Fulgenzi, B.A.<br>
Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1<br>
(519) 824-4120 x56354 (519) 767-1060 FAX (JNHN)<br>
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^<br>
Cooking with unix is easy. You just sed it and forget it. <br>
- LFJ (with apologies to Mr. Popeil)</span><span style="color:black"><o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Verdana","sans-serif";color:black">From:
</span></b><span style="font-size:10.0pt;font-family:"Verdana","sans-serif";color:black">"David Zhars" <dzhars@gmail.com><br>
<b>To: </b>cisco-voip@puck.nether.net<br>
<b>Sent: </b>Tuesday, November 23, 2010 1:10:50 PM<br>
<b>Subject: </b>[cisco-voip] Dry Closure Phones<br>
<br>
An app we are installing at our Police Dept requires the phones to have a "dry closure" contact or something like that.<br>
If I google this, I see a Dry Closure thing for 2600/3600 series, so I am researching that.<br>
Do any phones supported by CCM 8 support dry closure? Ultimately, I want the phones to work with SRST, so I probably don't want to stray too far from the Cisco wagon...<br>
<br>
Appreciate any insight.<br>
<br>
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<a href="https://puck.nether.net/mailman/listinfo/cisco-voip" target="_blank">https://puck.nether.net/mailman/listinfo/cisco-voip</a></span><span style="color:black"><o:p></o:p></span></p>
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